CCNA系列认证CCNA(640-802)章节练习(2020.05.27)

单项选择题
What is known as "one-to-nearest" addressing in IPv6?（）
A. global unicast
B. anycast
C. multicast
D. unspecified address
多项选择题
Which two statements are true about the command ip route 172.16.3.0 255.255.255.0 192.168.2.4? (Choose two.)（）
A.It establishes a static route to the 172.16.3.0 network.
B.It establishes a static route to the 192.168.2.0 network.
C.It configures the router to send any traffic for an unknown destination to the 172.16.3.0 network.
D.It configures the router to send any traffic for an unknown destination out the interface with the address 192.168.2.4.
E.It uses the default administrative distance.
F.It is a route that would be used last if other routes to the same destination exist.
单项选择题
Which of the following is true regarding the use of switches and hubs for network connectivity?（）
A.Switches take less time to process frames than hubs take.
B.Switches do not forward broadcasts.
C.Hubs can filter frames.
D.Using hubs can increase the amount of bandwidth available to hosts.
E.Switches increase the number of collision domains in the network.
单项选择题
How many broadcast domains are shown in the graphic assuming only the default vlan is configured on the switches?（）
A. one
B. six
C. twelve
D. two
多项选择题
the network administrator has been asked to give reasons for moving from ipv4 to ipv6. what are two valid reasons for adopting ipv6 over ipv4?（）
A. telnet access does not require a password
B. nat
C. no broadcast
D. chanage of destination address in the ipv6 header
E. chanage of source address in the ipv6 header
F. autoconfiguration
多项选择题
What are two reasons that a network administrator would use access lists? (Choose two.) （）。
A.to control vty access into a router
B.to control broadcast traffic through a router
C.to filter traffic as it passes through a router
D.to filter traffic that originates from the router
E.to replace passwords as a line of defense against security incursions
单项选择题
Which statement about RIPng is true?（）
A. RIPng allows for routes with up to 30 hops.
B. RIPng is enabled on each interface separately.
C. RIPng uses broadcasts to exchange routes.
D. There can be only one RIPng process per router.
单项选择题
A system administrator types the command to change the hostname of a router. Where on the Cisco IFS is that change stored? （）
A. NVRAM
B. RAM
C. FLASH
D. ROM
E. PCMCIA
多项选择题
OSPF routing uses the concept of areas. What are the characteristics of OSPF areas?（）
A. Each OSPF area requires a loopback interface to be configured.
B. Areas may be assigned any number from 0 to 65535.
C. Area 0 is called the backbone area.
D. Hierarchical OSPF networks do not require multiple areas.
E. Multiple OSPF areas must connect to area 0.
F. Single area OSPF networks must be configured in area 1.
多项选择题
A network administrator is explaining VTP configuration to a new technician. What should the network administrator tell the new technician about VTP configuration?（）
A. A switch in the VTP client mode cannot update its local VLAN database.
B. A trunk link must be configured between the switches to forward VTP updates.
C. A switch in the VTP server mode can update a switch in the VTP transparent mode.
D. A switch in the VTP transparent mode will forward updates that it receives to other switches.
E. A switch in the VTP server mode only updates switches in the VTP client mode that have a higher VTP revision number.
F. A switch in the VTP server mode will update switches in the VTP client mode regardless of the configured VTP domain membership.