CCNA系列認證CCNA(640-801)章節(jié)練習(xí)(2019.05.09)

A. frame-relay arp
B. frame-relay map
C. frame-relay interface-dlci
D. frame-relay lmi-type

A. It configures a router to send all packets out interface serial 0/0.
B. It configures a router to block routing updates from being sent out interface serial 0/0.
C. It configures a router as a firewall, blocking all unauthorized packets from exiting serial 0/0.
D. It configures a router to send all packets for unknown destination networks out interface serial 0/0.
E. It configures a router to drop all packets for which the destination network is unknown.

A. Static NAT
B. Global NAT
C. Dynamic NAT
D. Static NAT with ACLs
E. Dynamic NAT with overload

A. Switch
B. Router
C. NIC
D. hub
E. Repeater
F. RJ-45 transceiver

A.192.168.15.17
B.192.168.15.14
C.192.168.15.29
D.192.168.15.16
E.192.168.15.31
F.None of the above

A.255.255.0.0.
B.255.255.128.0.
C.255.255.224.0.
D.255.255.254.0.

A. A device waits for an electronic signal before transmitting.
B. A device listens and waits until the media is not busy before transmitting.
C. All devices on an Ethernet segment see data that passes on the network medium.
D. Only the sender and the receiver devices see data that passes on the network medium.
E. Ethernet networks allow you to configured devises with higher transmission priority.

A. TE1
B. TE2
C. TA
D. NT1
E. NT2

A.14
B.15
C.16
D.30
E.31
F.32

A. Half-duplex Ethernet operates in a shared collision domain.
B. Half-duplex Ethernet operates in an exclusive broadcast domain.
C. Half-duplex Ethernet has efficient throughput.
D. Half-duplex Ethernet has lower effective throughput.
E. Half-duplex Ethernet operates in an exclusive collision domain.