Options ** are Correct Answer
1. Which three factors should be considered when implementing a Layer 2 protocol in a network? (Choose three.)
the Layer 3 protocol selected
**the geographic scope of the network
the PDU defined by the transport layer
**the physical layer implementation
**the number of hosts to be interconnected
2. Refer to the exhibit. Assuming that the network in the exhibit is converged meaning the routing tables and ARP tables are complete, which MAC address will Host A place in the destination address field of Ethernet frames destined for http://www.server/?
00-1c-41-ab-c0-00
**00-0c-85-cf-65-c0
00-0c-85-cf-65-c1
00-12-3f-32-05-af
3. Which options are properties of contention-based media access for a shared media? (Choose three.)
**non-deterministic
**less overhead
one station transmits at a time
**collisions exist
devices must wait their turn
token passing
4. What is true concerning physical and logical topologies?
The logical topology is always the same as the physical topology.
Physical topologies are concerned with how a network transfers frames.
Physical signal paths are defined by Data Link layer protocols.
**Logical topologies consist of virtual connections between nodes.
5. What is true regarding media access control? (Choose three.)
**Ethernet utilizes CSMA/CD
**defined as placement of data frames on the media
contention-based access is also known as deterministic
802.11 utilizes CSMA/CD
**Data Link layer protocols define the rules for access to different media
controlled access contains data collisions
6. Which statements describe the logical token-passing topology? (Choose two.)
Network usage is on a first come, first serve basis.
**Computers are allowed to transmit data only when they possess a token.
Data from a host is received by all other hosts.
**Electronic tokens are passed sequentially to each other.
Token passing networks have problems with high collision rates.
7. A network administrator has been asked to provide a graphic representation of exactly where the company network wiring and equipment are located in the building. What is this type of drawing?
logical topology
**physical topology
cable path
wiring grid
access topology
8. What is the purpose of the preamble in an Ethernet frame?
is used as a pad for data
identifies the source address
identifies the destination address
marks the end of timing information
**is used for timing synchronization with alternating patterns of ones and zeros
9. What statements are true regarding addresses found at each layer of the OSI model? (Choose two.)
**Layer 2 may identify devices by a physical address burned into the network card
Layer 2 identifies the applications that are communicating
**Layer 3 represents a hierarchical addressing scheme
Layer 4 directs communication to the proper destination network
Layer 4 addresses are used by intermediary devices to forward data
10. Refer to the exhibit. Which statement describes the media access control methods that are used by the networks in the exhibit?
All three networks use CSMA/CA
None of the networks require media access control.
**Network 1 uses CSMA/CD and Network 3 uses CSMA/CA.
Network 1 uses CSMA/CA and Network 2 uses CSMA/CD.
Network 2 uses CSMA/CA and Network 3 uses CSMA/CD.
11. Refer to the exhibit. How many unique CRC calculations will take place as traffic routes from the PC to the laptop?
1
2
**4
8
12. Refer to the exhibit. A frame is being sent from the PC to the laptop. Which source MAC and IP addresses will be included in the frame as it leaves RouterB? (Choose two.)
source MAC - PC
source MAC - S0/0 on RouterA
**source MAC - Fa0/1 on RouterB
**source IP - PC
source IP - S0/0 on RouterA
source IP - Fa0/1 of RouterB
13. Which sublayer of the data link layer prepares a signal to be transmitted at the physical layer?
LLC
**MAC
HDLC
NIC
14. What two facts are true when a device is moved from one network or subnet to another? (Choose two.)
The Layer 2 address must be reassigned.
The default gateway address should not be changed.
**The device will still operate at the same Layer 2 address.
Applications and services will need additional port numbers assigned.
**The Layer 3 address must be reassigned to allow communications to the new network.
15. What is a function of the data link layer?
provides the formatting of data
provides end-to-end delivery of data between hosts
provides delivery of data between two applications
**provides for the exchange data over a common local media
16. What is a characteristic of a logical point-to-point topology?
The nodes are physically connected.
The physical arrangement of the nodes is restricted.
**The media access control protocol can be very simple.
The data link layer protocol used over the link requires a large frame header.
17. What is a primary purpose of encapsulating packets into frames?
provide routes across the internetwork
format the data for presentation to the user
**facilitate the entry and exit of data on media
identify the services to which transported data is associated
18. What is the primary purpose of the trailer in a data link layer frame?
define the logical topology
provide media access control
**support frame error detection
carry routing information for the frame
19. What are three characteristics of valid Ethernet Layer 2 addresses? (Choose three.)
**They are 48 binary bits in length.
**They are considered physical addresses.
**They are generally represented in hexadecimal format.
They consist of four eight-bit octets of binary numbers.
They are used to determine the data path through the network.
They must be changed when an Ethernet device is added or moved within the network.
there is one question that is not included in above. the answer to that question are ..... topology and media sharing.
Wednesday, September 17, 2008
Saturday, September 13, 2008
CCNA 4.0 module 6 (OSI Network Layer)
Options ** are Correct Answer
1. Refer to the exhibit. Which network prefix will work with the IP addressing scheme shown in the graphic.
/24
/16
/20
**/27
/25
/28
2. Which IPv4 subnetted addresses represent valid host addresses? (Choose three.)172.16.4.127 /26
**172.16.4.155 /26
**172.16.4.193 /26
172.16.4.95 /27
172.16.4.159 /27
**172.16.4.207 /27
3. Which statements are true regarding IP addressing? (Choose two.)
NAT translates public addresses to private addresses destined for the Internet.
Only one company is allowed to use a specific private network address space.
**Private addresses are blocked from public Internet by router.
Network 172.32.0.0 is part of the private address space.
**IP address 127.0.0.1 can be used for a host to direct traffic to itself.
4. Which process do routers use to determine the subnet network address based upon a given IP address and subnet mask?
binary adding
hexadecimal anding
binary division
binary multiplication
**binary ANDing
5. Refer to the exhibit. Host A is connected to the LAN, but it cannot get access to any resources on the Internet. The configuration of the host is shown in the exhibit. What could be the cause of the problem?
The host subnet mask is incorrect.
The default gateway is a network address.
The default gateway is a broadcast address.
**The default gateway is on a different subnet from the host.
6. What subnet mask would a network administrator assign to a network address of 172.30.1.0 if it were possible to have up to 254 hosts?
255.255.0.0
**255.255.255.0
255.255.254.0
255.255.248.0
7. Which three IP addresses are private? (Choose three.)
172.168.33.1
**10.35.66.70
**192.168.99.5
**172.18.88.90
192.33.55.89
172.35.16.5
8. Given the IP address and subnet mask of 172.16.134.64 255.255.255.224, which of the following would describe this address?
This is a useable host address.
This is a broadcast address.
**This is a network address.
This is not a valid address.
9. A router interface has been assigned an IP address of 172.16.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong?
172.16.0.0
172.16.192.0
172.16.192.128
**172.16.192.160
172.16.192.168
172.16.192.176
10. Refer to the exhibit. The network administrator has assigned the internetwork of LBMISS an address range of 192.168.10.0. This address range has been subnetted using a /29 mask. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network (subnet zero is the first subnet). By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last usable host address. Which configuration should be entered into the workgroup server's properties to allow connectivity to the network?
IP address: 192.168.10.38 subnet mask: 255.255.255.240 default gateway: 192.168.10.39
IP address: 192.168.10.38 subnet mask: 255.255.255.240 default gateway: 192.168.10.33
**IP address: 192.168.10.38 subnet mask: 255.255.255.248 default gateway: 192.168.10.33
IP address: 192.168.10.39 subnet mask: 255.255.255.248 default gateway: 192.168.10.31
IP address: 192.168.10.254 subnet mask: 255.255.255.0 default gateway: 192.168.10.1
11. Which of the following network devices are recommended to be assigned static IP addresses? (Choose three.)
LAN workstations
**servers
**network printers
**routers
remote workstations
laptops
12. hich of the following are features of IPv6? (Choose three.)
**larger address space
faster routing protocols
**data types and classes of service
**authentication and encryption
improved host naming conventions
same addressing scheme as IPv4
13. What is the primary reason for development of IPv6?
security
header format simplification
**expanded addressing capabilities
addressing simplification
14. What two things will happen if a router receives an ICMP packet which has a TTL value of 1 and the destination host is several hops away? (Choose two.)
**The router will discard the packet.
The router will decrement the TTL value and forward the packet to the next router on the path to the destination host.
**The router will send a time exceeded message to the source host.
The router will increment the TTL value and forward the packet to the next router on the path to the destination host.
The router will send an ICMP Redirect Message to the source host.
15. Refer to the exhibit. Why would the response shown be displayed after issuing the command ping 127.0.0.1 on a PC?
The IP settings are not properly configured on the host.
**Internet Protocol is not properly installed on the host.
There is a problem at the physical or data link layer.
The default gateway device is not operating.
A router on the path to the destination host has gone down.
16. How many bits make up an IPv4 address?
128
64
48
**32
17. Refer to the exhibit. A network administrator discovers that host A is having trouble with Internet connectivity, but the server farm has full connectivity. In addition, host A has full connectivity to the server farm. What is a possible cause of this problem?
The router has an incorrect gateway.
Host A has an overlapping network address.
Host A has an incorrect default gateway configured.
Host A has an incorrect subnet mask.
**NAT is required for the host A network.
18. What three facts are true about the network portion of an IPv4 address? (Choose three.)
identifies an individual device
**is identical for all hosts in a broadcast domain
is altered as packet is forwarded
**varies in length
**is used to forward packets
uses flat addressing
19. What is a group of hosts called that have identical bit patterns in the high order bits of their addresses?
an internet
**a network
an octeta radix
Bottom of Form
Top of Form
Bottom of Form
20. What is the network address of the host 172.25.67.99 /23 in binary?
10101100. 00011001.01000011.00000000
10101100. 00011001.01000011.11111111
**10101100. 00011001.01000010.00000000
10101100. 00011001.01000010.01100011
10101100. 00010001.01000011. 01100010
10101100. 00011001.00000000.00000000
21. Refer to the exhibit. A network administrator has to develop an IP addressing scheme that uses the 192.168.1.0 /24 address space. The network that contains the serial link has already been addressed out of a separate range. Each network will be allocated the same number of host addresses. Which network mask will be appropriate to address the remaining networks?
255.255.255.248
255.255.255.224
**255.255.255.192
255.255.255.240
255.255.255.128
255.255.255.252
1. Refer to the exhibit. Which network prefix will work with the IP addressing scheme shown in the graphic.
/24
/16
/20
**/27
/25
/28
2. Which IPv4 subnetted addresses represent valid host addresses? (Choose three.)172.16.4.127 /26
**172.16.4.155 /26
**172.16.4.193 /26
172.16.4.95 /27
172.16.4.159 /27
**172.16.4.207 /27
3. Which statements are true regarding IP addressing? (Choose two.)
NAT translates public addresses to private addresses destined for the Internet.
Only one company is allowed to use a specific private network address space.
**Private addresses are blocked from public Internet by router.
Network 172.32.0.0 is part of the private address space.
**IP address 127.0.0.1 can be used for a host to direct traffic to itself.
4. Which process do routers use to determine the subnet network address based upon a given IP address and subnet mask?
binary adding
hexadecimal anding
binary division
binary multiplication
**binary ANDing
5. Refer to the exhibit. Host A is connected to the LAN, but it cannot get access to any resources on the Internet. The configuration of the host is shown in the exhibit. What could be the cause of the problem?
The host subnet mask is incorrect.
The default gateway is a network address.
The default gateway is a broadcast address.
**The default gateway is on a different subnet from the host.
6. What subnet mask would a network administrator assign to a network address of 172.30.1.0 if it were possible to have up to 254 hosts?
255.255.0.0
**255.255.255.0
255.255.254.0
255.255.248.0
7. Which three IP addresses are private? (Choose three.)
172.168.33.1
**10.35.66.70
**192.168.99.5
**172.18.88.90
192.33.55.89
172.35.16.5
8. Given the IP address and subnet mask of 172.16.134.64 255.255.255.224, which of the following would describe this address?
This is a useable host address.
This is a broadcast address.
**This is a network address.
This is not a valid address.
9. A router interface has been assigned an IP address of 172.16.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong?
172.16.0.0
172.16.192.0
172.16.192.128
**172.16.192.160
172.16.192.168
172.16.192.176
10. Refer to the exhibit. The network administrator has assigned the internetwork of LBMISS an address range of 192.168.10.0. This address range has been subnetted using a /29 mask. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network (subnet zero is the first subnet). By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last usable host address. Which configuration should be entered into the workgroup server's properties to allow connectivity to the network?
IP address: 192.168.10.38 subnet mask: 255.255.255.240 default gateway: 192.168.10.39
IP address: 192.168.10.38 subnet mask: 255.255.255.240 default gateway: 192.168.10.33
**IP address: 192.168.10.38 subnet mask: 255.255.255.248 default gateway: 192.168.10.33
IP address: 192.168.10.39 subnet mask: 255.255.255.248 default gateway: 192.168.10.31
IP address: 192.168.10.254 subnet mask: 255.255.255.0 default gateway: 192.168.10.1
11. Which of the following network devices are recommended to be assigned static IP addresses? (Choose three.)
LAN workstations
**servers
**network printers
**routers
remote workstations
laptops
12. hich of the following are features of IPv6? (Choose three.)
**larger address space
faster routing protocols
**data types and classes of service
**authentication and encryption
improved host naming conventions
same addressing scheme as IPv4
13. What is the primary reason for development of IPv6?
security
header format simplification
**expanded addressing capabilities
addressing simplification
14. What two things will happen if a router receives an ICMP packet which has a TTL value of 1 and the destination host is several hops away? (Choose two.)
**The router will discard the packet.
The router will decrement the TTL value and forward the packet to the next router on the path to the destination host.
**The router will send a time exceeded message to the source host.
The router will increment the TTL value and forward the packet to the next router on the path to the destination host.
The router will send an ICMP Redirect Message to the source host.
15. Refer to the exhibit. Why would the response shown be displayed after issuing the command ping 127.0.0.1 on a PC?
The IP settings are not properly configured on the host.
**Internet Protocol is not properly installed on the host.
There is a problem at the physical or data link layer.
The default gateway device is not operating.
A router on the path to the destination host has gone down.
16. How many bits make up an IPv4 address?
128
64
48
**32
17. Refer to the exhibit. A network administrator discovers that host A is having trouble with Internet connectivity, but the server farm has full connectivity. In addition, host A has full connectivity to the server farm. What is a possible cause of this problem?
The router has an incorrect gateway.
Host A has an overlapping network address.
Host A has an incorrect default gateway configured.
Host A has an incorrect subnet mask.
**NAT is required for the host A network.
18. What three facts are true about the network portion of an IPv4 address? (Choose three.)
identifies an individual device
**is identical for all hosts in a broadcast domain
is altered as packet is forwarded
**varies in length
**is used to forward packets
uses flat addressing
19. What is a group of hosts called that have identical bit patterns in the high order bits of their addresses?
an internet
**a network
an octeta radix
Bottom of Form
Top of Form
Bottom of Form
20. What is the network address of the host 172.25.67.99 /23 in binary?
10101100. 00011001.01000011.00000000
10101100. 00011001.01000011.11111111
**10101100. 00011001.01000010.00000000
10101100. 00011001.01000010.01100011
10101100. 00010001.01000011. 01100010
10101100. 00011001.00000000.00000000
21. Refer to the exhibit. A network administrator has to develop an IP addressing scheme that uses the 192.168.1.0 /24 address space. The network that contains the serial link has already been addressed out of a separate range. Each network will be allocated the same number of host addresses. Which network mask will be appropriate to address the remaining networks?
255.255.255.248
255.255.255.224
**255.255.255.192
255.255.255.240
255.255.255.128
255.255.255.252
Wednesday, September 3, 2008
CCNA 4.0 module 5 (OSI Network Layer)
Options ** are Correct Answer
1. In an IPv4 environment, what information is used by the router to forward data packets from one interface of a router to another?
**destination network address
source network address
source MAC address
well known port destination address
2. What information is added during encapsulation at OSI Layer 3?
source and destination MAC
source and destination application protocol
source and destination port number
**source and destination IP address
3. In a connectionless system, which of the following is correct?
The destination is contacted before a packet is sent.
**The destination is not contacted before a packet is sent.
The destination sends an acknowledgement to the source that indicates the packet was received.
The destination sends an acknowledgement to the source that requests the next packet to be sent.
4. Which IP packet field will prevent endless loops?
type-of-service
identification
flags
**time-to-live
header checksum
5. Which portion of the network layer address does a router use to forward packets?
host portion
broadcast address
**network portion
gateway address
6. Refer to the exhibit. Using the network in the exhibit, what would be the default gateway address for host A in the 192.133.219.0 network?
192.135.250.1
192.31.7.1
192.133.219.0
**192.133.219.1
7. If the default gateway is configured incorrectly on the host, what is the impact on communications?
The host is unable to communicate on the local network.
**The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.
The host can communicate with other hosts on remote networks, but is unable to communicate with hosts on the local network.
There is no impact on communications.
8. What is the purpose of a default gateway?
physically connects a computer to a network
provides a permanent address to a computer
identifies the network to which a computer is connected
identifies the logical address of a networked computer and uniquely identifies it to the rest of the network
**identifies the device that allows local network computers to communicate with devices on other networks
9. What type of routing uses information that is manually entered into the routing table?
dynamic
interior
**static
standard
10. When the destination network is not listed in the routing table of a Cisco router, what are two possible actions that the router might take? (Choose two.)
The router sends an ARP request to determine the required next hop address.
**The router discards the packet.
The router forwards the packet toward the next hop indicated in the ARP table.
The router forwards the packet to the interface indicated by the source address.
**The router forwards the packet out the interface indicated by the default route entry.
11. What are the key factors to consider when grouping hosts into a common network? (Choose three.)
gateways
**purpose
physical addressing
software version
**geographic location
**ownership
12. What is a component of a routing table entry?
the MAC address of the interface of the router
the destination Layer 4 port number
the destination host address
**the next-hop address
13. Which intermediary devices could be used to implement security between networks? (Choose two.)
**router
hub
switch
**firewall
access point
bridge
14. What are three common problems with a large network? (Choose three.)
too few broadcasts
**performance degradation
**security issues
limited management responsibility
**host identification
protocol compatibility
15. Refer to the exhibit. All devices shown in the exhibit have factory default settings. How many broadcast domains are represented in the topology that is shown?
3
**4
5
7
8
11
16. Which three statements are true about routes and their use? (Choose three.)
If no route to the destination network is found, the packet is returned to the previous router.
**If the destination network is directly connected, the router forwards the packet to the destination host.
If multiple network entries exist for the destination network, the most general route is used to forward the packet.
**If no route exists for the destination network and a default route is present, the packet is forwarded to the next-hop router.
**If the originating host has a default gateway configured, the packet for a remote network can be forwarded using that route.
If a host does not have a route manually configured for the destination network, the host will drop the packet.
17. Refer to the exhibit. A network administrator is troubleshooting a connectivity problem and needs to determine the address that is used to forward network packets out the network. Using the netstat -r command, the administrator would identify which address as the address to which all hosts send packets that are destined for an outside network?
10.10.10.26
127.0.0.1
**10.10.10.6
10.10.10.1
224.0.0.0
18. Refer to the exhibit. A network administrator notices that there are too many broadcasts on the network. What two steps can the network administrator take to resolve this problem? (Choose two.)
**Replace S2 with a router.
Place all servers on S1.
Disable TCP/IP broadcasts.
**Subnet the 192.168.0.0 /24 network.
Disable all unused interfaces on the switches.
19. Refer to the exhibit. The network in the exhibit is fully operational. What two statements correctly describe the routing for the topology that is shown? (Choose two.)
**192.168.0.2 is the next-hop address that is used by R3 to route a packet from the 10.0.0.0 network to the 172.16.0.0 network.
10.0.0.1 is the next-hop address that is used by R1 to route a packet from the 192.168.12.0 network to the 10.0.0.0 network.
192.168.0.1 is the next-hop address that is used by R1 to route a packet from the 192.168.12.0 network to the 172.16.0.0 network.
172.16.0.1 is the next-hop address that is used by R3 to route a packet from the 10.0.0.0 to the 172.16.0.0 network.
**192.168.0.1 is the next-hop address that is used by R2 to route a packet from the 172.16.0.0 network to the 192.168.12.0 network.
192.168.0.2 is the next-hop address that is used by R2 to route a packet from the 172.16.0.0 network to the 192.168.12.0 network.
20. What two characteristics are commonly associated with dynamic routing protocols? (Choose two.)
require no device configuration
**provide routers with up-to-date routing tables
require less processing power than static routes require
**consume bandwidth to exchange route information
prevent manual configuration and maintenance of the routing table
21. What statement describes the purpose of a default route?
A host uses a default route to transfer data to another host on the same network segment.
A host uses a default route to forward data to the local switch as the next hop to all destinations.
A host uses a default route to identify the Layer 2 address of an end device on the local network.
**A host uses a default route to transfer data to a host outside the local network when no other route to the destination exists.
If anything, juz leave a comment.
1. In an IPv4 environment, what information is used by the router to forward data packets from one interface of a router to another?
**destination network address
source network address
source MAC address
well known port destination address
2. What information is added during encapsulation at OSI Layer 3?
source and destination MAC
source and destination application protocol
source and destination port number
**source and destination IP address
3. In a connectionless system, which of the following is correct?
The destination is contacted before a packet is sent.
**The destination is not contacted before a packet is sent.
The destination sends an acknowledgement to the source that indicates the packet was received.
The destination sends an acknowledgement to the source that requests the next packet to be sent.
4. Which IP packet field will prevent endless loops?
type-of-service
identification
flags
**time-to-live
header checksum
5. Which portion of the network layer address does a router use to forward packets?
host portion
broadcast address
**network portion
gateway address
6. Refer to the exhibit. Using the network in the exhibit, what would be the default gateway address for host A in the 192.133.219.0 network?
192.135.250.1
192.31.7.1
192.133.219.0
**192.133.219.1
7. If the default gateway is configured incorrectly on the host, what is the impact on communications?
The host is unable to communicate on the local network.
**The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.
The host can communicate with other hosts on remote networks, but is unable to communicate with hosts on the local network.
There is no impact on communications.
8. What is the purpose of a default gateway?
physically connects a computer to a network
provides a permanent address to a computer
identifies the network to which a computer is connected
identifies the logical address of a networked computer and uniquely identifies it to the rest of the network
**identifies the device that allows local network computers to communicate with devices on other networks
9. What type of routing uses information that is manually entered into the routing table?
dynamic
interior
**static
standard
10. When the destination network is not listed in the routing table of a Cisco router, what are two possible actions that the router might take? (Choose two.)
The router sends an ARP request to determine the required next hop address.
**The router discards the packet.
The router forwards the packet toward the next hop indicated in the ARP table.
The router forwards the packet to the interface indicated by the source address.
**The router forwards the packet out the interface indicated by the default route entry.
11. What are the key factors to consider when grouping hosts into a common network? (Choose three.)
gateways
**purpose
physical addressing
software version
**geographic location
**ownership
12. What is a component of a routing table entry?
the MAC address of the interface of the router
the destination Layer 4 port number
the destination host address
**the next-hop address
13. Which intermediary devices could be used to implement security between networks? (Choose two.)
**router
hub
switch
**firewall
access point
bridge
14. What are three common problems with a large network? (Choose three.)
too few broadcasts
**performance degradation
**security issues
limited management responsibility
**host identification
protocol compatibility
15. Refer to the exhibit. All devices shown in the exhibit have factory default settings. How many broadcast domains are represented in the topology that is shown?
3
**4
5
7
8
11
16. Which three statements are true about routes and their use? (Choose three.)
If no route to the destination network is found, the packet is returned to the previous router.
**If the destination network is directly connected, the router forwards the packet to the destination host.
If multiple network entries exist for the destination network, the most general route is used to forward the packet.
**If no route exists for the destination network and a default route is present, the packet is forwarded to the next-hop router.
**If the originating host has a default gateway configured, the packet for a remote network can be forwarded using that route.
If a host does not have a route manually configured for the destination network, the host will drop the packet.
17. Refer to the exhibit. A network administrator is troubleshooting a connectivity problem and needs to determine the address that is used to forward network packets out the network. Using the netstat -r command, the administrator would identify which address as the address to which all hosts send packets that are destined for an outside network?
10.10.10.26
127.0.0.1
**10.10.10.6
10.10.10.1
224.0.0.0
18. Refer to the exhibit. A network administrator notices that there are too many broadcasts on the network. What two steps can the network administrator take to resolve this problem? (Choose two.)
**Replace S2 with a router.
Place all servers on S1.
Disable TCP/IP broadcasts.
**Subnet the 192.168.0.0 /24 network.
Disable all unused interfaces on the switches.
19. Refer to the exhibit. The network in the exhibit is fully operational. What two statements correctly describe the routing for the topology that is shown? (Choose two.)
**192.168.0.2 is the next-hop address that is used by R3 to route a packet from the 10.0.0.0 network to the 172.16.0.0 network.
10.0.0.1 is the next-hop address that is used by R1 to route a packet from the 192.168.12.0 network to the 10.0.0.0 network.
192.168.0.1 is the next-hop address that is used by R1 to route a packet from the 192.168.12.0 network to the 172.16.0.0 network.
172.16.0.1 is the next-hop address that is used by R3 to route a packet from the 10.0.0.0 to the 172.16.0.0 network.
**192.168.0.1 is the next-hop address that is used by R2 to route a packet from the 172.16.0.0 network to the 192.168.12.0 network.
192.168.0.2 is the next-hop address that is used by R2 to route a packet from the 172.16.0.0 network to the 192.168.12.0 network.
20. What two characteristics are commonly associated with dynamic routing protocols? (Choose two.)
require no device configuration
**provide routers with up-to-date routing tables
require less processing power than static routes require
**consume bandwidth to exchange route information
prevent manual configuration and maintenance of the routing table
21. What statement describes the purpose of a default route?
A host uses a default route to transfer data to another host on the same network segment.
A host uses a default route to forward data to the local switch as the next hop to all destinations.
A host uses a default route to identify the Layer 2 address of an end device on the local network.
**A host uses a default route to transfer data to a host outside the local network when no other route to the destination exists.
If anything, juz leave a comment.
Tuesday, September 2, 2008
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