CCIE考试试题（2）
添加时间: 2007-9-3 22:29:38 作者: Cisco认证考试 阅读次数:51 来源: http://www.d9soft.com
Question 1
How do you tell the IOS to display addresses with CIDR-style bitcount notation (e.g., 192.168.1.0/24) rather than traditional subnet masks (e.g., 192.168.1.0 255.255.255.0)?
A. In configuration mode, enter ip classless
B. In exec mode, enter term ip netmask b
C. In configuration mode, enter term ip netmask b
D. Bitcount notation is the default
Question 2
What commands/functions are needed before you can compare logs between two routers?
A. service timestamps
B. ntp running
C. terminal monitor
D. debug
Question 3
Assume you have telnetted into a router, and are talking on the telephone to another network engineer at a remote router. At the command prompt, you enter show version and get perfectly reasonable output. Next, you enter debug ip icmp and ask your partner to ping your router. She reports a successful ping, but you see no debug output. What is the most likely reason for your apparently inconsistent information?
A. An access group on the virtual terminal line points to an access list that denies icmp echo respons
B. An access class on the virtual terminal line points to an access list that denies icmp echo response
C. logging buffered has not been configured
D. terminal monitor was not entered in exec mode
Question 4
Which command(s) will display layer 2 traffic volume?
A. On a router, show interface
B. On a C5000 family switch, show mac
C. On a router, show ip interface
D. On a C5000 family switch, show port
Question 5
Select the initial forwarding mode(s) to all destinations, regardless of the mode set on the interface statement.
A. Process switching on the 2500 through 4000
B. Fast switching on all platforms
C. Process switching on all platforms
D. Silicon switching on the 7000
Question 6
Which choice shows two techniques which cause the same filtering?
A. ip route 192.168.0.0 255.255.255.0 null0
access-list 100 deny any 192.168.0.0 0.0.0.255
B. ip route 192.168.0.0 255.255.255.0 null0
access-list 10 deny 192.168.0.0 0.0.0.255
C. ip route 192.168.0.0 255.255.255.0 loopback0
access-list 100 deny any 192.168.0.0 0.0.0.255
D. ip route 192.168.0.0 255.255.255.0 null0
access-list 100 deny 192.168.0.0 0.0.0.255 any
Question 7
What exec mode command displays the value of the configuration register that will be used at the next reboot?
A. show boot
B. show version
C. boot system flash
D. config-register
Question 8
What choices make up the minimum set of password-related commands that must be defined before you can configure a router through a telnet session?
A. service password encryption
B. enable secret
C. password under line vty
D. enable password
Question 9
In a routed environment, information at what OSI layer(s) is necessary to determine whether connectivity exists between two processes in end hosts?
A. Application
B. Transport
C. Network
D. Data link
Question 10
In distributed switching, where are the two major components of routing implemented?
A. Path determination and packet forwarding both run in special-purpose processors. An ASIC on the VIP or NFFC mirrors the processing in the main route processor.
B. Path determination runs in a general-purpose processor such as a RP or RSM. A high-speed route lookup table is built and stored in a special-purpose switching engine. Traffic from all interface processors goes through the switching engine.
C. Path determination runs in a general-purpose processor such as a RP or RSM. Copies of a high-speed route lookup table are distributed to each intelligent interface module, such as a VIP.
D. Path determination runs in a general-purpose processor such as a RP or RSM. Copies of a high-speed route lookup table are distributed to a set of separate routers or switches.
Question 11
Which of the following routing protocols send updates only when something changes, rather than periodic updates?
A. EIGRP
B. OSPF
C. IGRP
D. RIPv2
Question 12
Which of the following protocols routinely respond to congestion?
A. IP
B. TCP
C. UDP
D. RTCP
Question 13
How does an IPX host learn its network address?
A. From a DHCP server
B. From a GNS server
C. Algorithmically, from local configuration of the network and its active MAC address
D. Algorithmically, by combining its active MAC address with a network prefix learned by listening to router broadcasts
Question 14
Select the statements that are true regarding Switched Multimedia Data Service (SMDS) and IEEE 802.6.
A. 802.6 was developed as a general Metropolitan Area Network (MAN) that supported isochronous services such as voice and video, as well as data traffic.
B. SMDS is a multilayer protocol stack that is a data-only subset of 802.6.
C. 802.6 is intended for user access to networks.
D. The SMDS Interface Protocol (SIP) layer 3 protocol is IP
Question 15
If a serial medium is both slow and has a high error rate, in what ways could you optimize throughput?
A. Reduce the packet size to minimize the amount of data to be retransmitted on error
B. Use link-by-link rather than end-to-end retransmission
C. Increase the TCP window size
D. Use a small window size
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