正文

CCNA 801 Certification Practice Exam #12007-09-23 18:43:00

【评论】 【打印】 【字体：大 中 小】 本文链接：http://blog.pfan.cn/ccna/29619.html

分享到：

Take Assessment - CCNA 801 Certification Practice Exam #1 （上）- CCNA 4 WAN Technologies (Version 3.1)

Time Remaining:

1
Which ISDN device can be directly connected to a two-wire local loop in a North American city?
a router with a serial interface
a router with an S/T interface
a router with a U interface
an ISDN terminal adapter

*2
Which of the following commands will display a communication message on a router before the router prompt is shown?
banner motd * Property of TLC. UNAUTHORIZED USERS WILL BE PROSECUTED TO THE FULL EXTENT OF THE LAW. *
message Property of TLC. UNAUTHORIZED USERS WILL BE PROSECUTED TO THE FULL EXTENT OF THE LAW.
banner * Property of TLC. UNAUTHORIZED USERS WILL BE PROSECUTED TO THE FULL EXTENT OF THE LAW. *
hostname (Property of TLC. UNAUTHORIZED USERS WILL BE PROSECUTED TO THE FULL EXTENT OF THE LAW.)

*3


Users have been complaining that network applications are running very slowly and responding to input commands intermittently. While troubleshooting the problem, a technician issues the show interface e0 command on the router attached to the network. Based on the partial output shown in the graphic, which of the following items indicates that interface E0 is overloaded and causing the network to perform slowly?
MTU 1500 bytes
BW 10000 Kbit
DLY 1000 usec
reliability 128/255
txload 1/255
rxload 253/255

4


Refer to the graphic. Which of the following commands will configure router A for OSPF?
router ospf 1
network 192.168.10.0
router ospf 1
network 192.168.10.64 0.0.0.63 area 0
network 192.168.10.192 0.0.0.3 area 0
router ospf 1
network 192.168.10.64 255.255.255.192
network 192.168.10.192 255.255.255.252
router ospf 1
network 192.168.10.0 area 0

*5
Which of the following protocols would exchange information between routers to share network addresses and their metrics?
TCP
RIP
CSMA/CD
Ethernet
6
A router does not load its configuration after a power failure. After running the show startup-configuration command, the adminstrator finds that the original configuration is intact. What is the cause of this problem?
The configuration register is set for 0x2100.
The configuration register is set for 0x2101.
The configuration register is set for 0x2102.
The configuration register is set for 0x2142.
Boot system commands are not configured.
Flash memory is empty causing the router to bypass the configuration in NVRAM.

*7
When using access control lists to filter traffic, which of the following is used to track multiple sessions occurring between hosts?
IP addresses
subnet masks
port numbers
routed protocols
routing protocols
interfaces

*8


Refer to the partial protocol data unit diagrams shown. Which of the following statements are true regarding the encapsulation process? (Choose three.)
PDU #1 is an encapsulated packet.
PDU #2 is an application layer PDU
PDU #3 is a segment.
PDU #4 is a transport layer PDU.
The order in which these PDUs are created during the encapsulation process is 3, 4, 1, 2.
The order in which these PDUs are created during the encapsulation process is 2, 1, 4, 3.

*9


A switch can be configured for three different forwarding modes based on how much of a frame is received before the forwarding process begins. Each of the numbered arrows in the accompanying graphic signifies the point in a frame where a particular forwarding mode will begin. Which one of the following groups reflects the sequence of forwarding modes signified by the numbered arrows?
1) fast forward
2) fragment free
3) store-and-forward
1) store-and-forward
2) fragment free
3) fast forward
1) fragment free
2) fast forward
3) store-and-forward
1) fast forward
2) store-and-forward
3) fragment free

10
A router needs to be added to OSPF area 0. Which commands should be used to enable OSPF on the router? (Choose two.)
RouterA(config)# router ospf
RouterA(config)# router ospf 1
RouterA(config-router)# network 192.168.2.0 0.0.0.255 0
RouterA(config-router)# network 192.168.2.0 0.0.0.255 area 0
RouterA(config-router)# network 192.168.2.0 255.255.255.0 0
*11


R3 has the following configuration:

R3# show running-config
--some output text omitted--
interface serial0/0
bandwidth 128
ip address 192.168.11.2 255.255.255.0
encapsulation frame-relay
frame-relay map ip 192.168.11.2 30 broadcast

After the command R3# debug frame-relay packet is executed, a ping is issued from R3 to R1 but is unsuccessful. Based on the output of the debug command shown in the graphic and the router configuration, what might be problem?
No clock rate assigned.
There is an incorrect DLCI number in the map statement.
An incorrect IP address exists in the map statement.
The encapsulation command is missing the broadcast keyword.

12
What is the purpose of a loopback address when using the OSPF routing protocol?
activates the OSPF neighboring process
ensures a persistent router ID for the OSPF process
provides a backdoor for connectivity during the convergence process
streamlines and speeds up the convergence process

*13
Which of the following are examples of TCP/IP application layer protocols? (Choose three.)
a terminal emulation protocol that supports remote console connections with various network devices
a protocol created by IBM that makes it easier for mainframes to connect to remote offices
a protocol responsible for transporting electronic mail on TCP/IP networks and the Internet
a protocol that controls the rate at which data is sent to another computer
a protocol that exchanges network management information between a network device and a management console

14
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.

15



16
Which of the following eliminates switching loops?
hold-down timers
poison reverse
spanning tree protocol
time to live

split horizon protocol


17


Five new routers need to be configured quickly for testing. While connected to a router by console, the administrator copies and pastes a configurtion from a text file, a part of which is shown in the graphic, into the HyperTerminal window. Why would host 192.168.10.10/29 be unable to ping the Ethernet interface of the router as a result of this procedure?
The new configuration needs to be saved to the NVRAM before the changes take effect.
The router needs to be reloaded before the changes are implemented.
The Ethernet network does not show up in the routing table because the RIP configuration is incomplete.
The copied configuration did not overwrite the shutdown command on the Ethernet interface.
The subnet mask on the router prevents the host from communicating with it.

18
What commands will configure an interface on a Catalyst 2900 series switch to carry traffic from all VLANs to another directly connected switch? (Choose two.)
Switch(config-if)# vlan all
Switch(config-if)# switchport access vlan 30
Switch(config-if)# switchport access vlan all
Switch(config-if)# switchport mode trunk
Switch(config-if)# switchport trunk encapsulation dot1q

19



*20


According to the the provided router output, which of the following statements is true regarding PPP operation?
Only the link-establishment phase completed successfully.
Only the network-layer phase completed successfully.
Neither the link-establishment phase nor the the network-layer phase completed successfully.
Both the link-establishment and network-layer phase completed successfully.
21
Which of the following is associated with link-state routing protocols?
low processor overhead
poison reverse
routing loops
split horizon
shortest-path first calculations

22


The company network shown in the drawing has to be subnetted. The company has leased the Class C IP address of 200.1.2.0. Which of the following network addresses and masks would be appropriate for one of the subnetworks?
200.1.2.96 255.255.255.192
200.1.2.160 255.255.255.224
200.1.2.80 255.255.255.224
200.1.2.32 255.255.255.240

23
A router with two LAN interfaces, two WAN interfaces, and two loopback interfaces configured is operating with OSPF as its routing protocol. What is used by the OSPF process to assign the router ID?
the IP address of the interface configured with priority 0
the OSPF area ID configured on the interface with the highest IP address
the loopback with the highest IP address configured
the highest IP address on the LAN interfaces
the highest IP address configured on the WAN interfaces
Google
 

阅读(11789) | 评论(3)


版权声明：编程爱好者网站为此博客服务提供商，如本文牵涉到版权问题，编程爱好者网站不承担相关责任，如有版权问题请直接与本文作者联系解决。谢谢！

评论

loading...
您需要登录后才能评论，请 登录 或者 注册