On which destination port in the Layer 4 header does BGP listen?()
第1题:
A. UDP port 169
B. TCP port 169
C. UDP port 179
D. TCP port 179
第2题:
A.The switch will not forward unicast frames.
B.The switch will forward the frame to a specific port.
C.The switch will return a copy of the frame out the source port.
D.The switch will remove the destination MAC from the switch table.
E.The switch will forward the frame to all ports except the port on which it was received.
第3题:
CFR,全称Cost and Freight(named port of destination)
中文意为“成本加运费(指定目的港)”,指在装运港货物越过船舷时卖方即完成交货,卖方须支付将货物运至指定目的港所需的运费。但货物的风险是在装运港船舷转移的。该术语适合于海运或内河运输。CFR价与下列CIF价相比,在价格构成中少了保险费,因此,除了保险是由买方办理外,其他的双方义务与下列CIF价基本相同。应该注意的是,CFR价装船是卖方而投保又是买方,卖方在装船后应给买方以充分的通知,否则,因此而造成买方漏保引起的货物损失应由卖方承担。
第4题:
You examine the port statistics on a Cisco Catalyst switch and notice an excessive number offrames are being dropped. Which of the following are possible reasons for the drops?()
第5题:
第6题:
Your boss is learning a CCNA training course,refer to the exhibit.The access list has been configured on the S0/0 interface of router RTB in the outbound direction.Which two packets,if routed to the interface,will be denied?()access-list 101 denytcp192.168.15.320.0.0.15any eq telnetaccess-list 101 permitip any any
A.source ip address:192.168.15.5;destination port: 21
B.source ip address:,192.168.15.37 destination port: 21
C.source ip address:,192.168.15.41 destination port: 21
D.source ip address:,192.168.15.36 destination port: 23
E.source ip address:192.168.15.46;destination port: 23
F.source ip address:,192.168.15.49 destination port: 23
第7题:
A.source ip address:192.168.15.5 destination port:21
B.source ip address:192.168.15.37 destination port:21
C.ssource ip address192.168.15.41 destination port:21
D.source ip address:192.168.15.36 destination port:23
E.source ip address:192.168.15.46 destination port:23
F.source ip address:192.168.15.49 destination port:23
第8题:
A. IP protocol
B. IP time-to-live
C. source and destination IP address
D. source and destination MAC address
E. source and destination TCP/UDP port
第9题:
Which of the following descriptions about IP spoofing is correct?()
第10题:
A standard IP access list is applied to an Ethernet interface of a router. What does this standard access list filter on?()