思科认证考试（ＣＣＮＡ）考试模拟题０１—１９及答案

    
 
11. [ExNx] Collisions occur when

a) multiple packets are placed on a serial link
b) multiple stations listen for traffic and transmit at the same time
c) when multiple tokens are on a ring simultaneously
d) beaconing process takes place

12. [RINx] How many subnets are possible with a Class C address and a subnet mask of 255.255.255.252?

a) 32
b) 30
c) 60
d) 62
e) 4

13. [RxNx] What commands will list all protocols that are currently being routed? (Choose all that apply.)

a) show ip protocol
b) show protocol
c) show run
d) show start
e) All of the above

14. [xxNx] Which of the following are true of access lists?

a) Access list should have at least one permit statement.
b) The last configured line should always be a permit statement.
c) Every access-list will implicitly deny all traffic.
d) Access-lists are processed top down.
e) All of the above.

15. [xxNx] If the access-group command is configured on an interface and there is no access-list created which of the following is most correct?

a) An error message will appear.
b) The command will be executed and deny all traffic out.
c) The command will be executed and permit all traffic out.
d) The command will be executed and permit all traffic in and out.
e) The command will be executed and deny all traffic in and out.

16. [xxNx] What is the result of the command?

" access-list 101 permit tcp any 172.16.0.0 0.0.255.255 established"

a) telnet sessions will be permitted regardless of the source address
b) telnet sessions will be denied regardless of the source address
c) telnet sessions will be denied if initiated from any address other than 172.16.0.0 network
d) telnet sessions will be permitted to the 172.16.0.0 network only
e) telnet sessions will be denied to the 172.16.0.0 network only

17. [xxNx] Which is generally true of the location of access-lists? (Choose all that apply.)

a) Standard lists will most likely be placed close to the destination.
b) Standard lists will most likely be placed close to the source.
c) Extended lists will most likely be placed close to the destination.
d) Extended lists will most likely be placed close to the source.
e) It does not matter.

18. [RxNx] Which of the following is most correct?

a) IP is to TCP. as IPX is to SPX.
b) RTMP is to Appletalk as IP RIP is to IP.
c) NLSP is to IPX as OSPF is to IP.
d) a is true.
e) b is true.
f) a & b are true.
g) c is true.
h) b & c are true.
i) a, b and c are true.

19. [ExNx] If Host A sends a packet to Host B over ethernet and Host B is not active:

a) The packet will time out.
b) The packet will be removed by Host A.
c) The NVRAM of Host B will remove the packet.
d) The packet will "die" when it reaches the terminator.
e) The packet will be removed by the token monitor.

Coding Key and Information

The first character represents the category of question.

A - ATM
B - Bridging
C - Cisco specific
E - Ethernet
F - Frame relay
H - HDLC
I - FDDI
N - ISDN
O - OSI model
P - PPP
R - Routing
S - Switching
T - Token ring
X - X.25
x - Not applicable

The second character represents protocol.

A - Appletalk
B - Banyan Vines
D - Decnet
I - IP
L - Dial on Demand
N - NLSP
O - OSPF
X - IPX
x - Not Applicable

The third character represents the certification that the question will help you prepare for.

N - CCNA Exam #640-407
P - CCNP
Advanced Cisco Router Configuration (ACRC) Exam 640-403
Cisco LAN Switch Configuration (CLSC) Exam #640-404
Cisco Monitoring and Troubleshooting Dial-up Services Exam #640-405
Cisco Internetworking Troubleshooting ( CIT) Exam #640-406

D - CCDA & CCDP
Cisco Design Specialist Exam #9E0-004
Cisco Internetwork Design#640-025

We will reserve the fourth character for future use.

As an example, when you come across a question coded "BXDx", it signifies a question that will help you gain the CCDA or CCDP certification.