题目内容
（请给出正确答案）
[单选题]
Which service, command or tool discovers the IP addresses of all computers or routers
A.Whois
B.Port scanner
C.Traceroute
D.Nslookup
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题目内容
（请给出正确答案）
如果结果不匹配，请 联系老师 获取答案
题目内容
（请给出正确答案）
A.Whois
B.Port scanner
C.Traceroute
D.Nslookup
如果结果不匹配，请 联系老师 获取答案
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(d) Suggest a set of SIX performance measures which the directors of SSH could use in order to assess the
quality of service provided to its clients. (3 marks)
A.configuration of board port
B.configuration of vlan interface and IP interface
C.configuration of ARP
D.configuration of static MAC address
B.AGBLK (reserves a paging block for access grant)
C.Paging strategy (for example, second page in the MSC service area or in the LA)
D.Combined or non-combined mapping
E.The use of cell broadcast
A.username who password who privilege 15
B.snmp packetsize 8192
C.line telnet idle-timeout 30，line telnet absolute-timeout 0
D.multi-user configure
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E.A vendor delivery note
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A.Execute Show lacp sys-id to check MAC address of local device rack, which is just the static MAC used for basic configuration of the device
B.Execute command show mac to check service MAC of peer device.
C.Execute command show lldp neighbor to display MAC of local device port, interconnected peer device port and its rack.
D.Execute show arp to show arp entries, which mark mac address and interface.
B. To select endpoint for end-to-end PTN Ethernet service, first select NE and then corresponding port or UNI interface
C. To create TREE service, all CIP/VIP nodes have leaf attributes and root attributes when ZXCTN6000 device acts as root node
D. To create TREE service, all PWs and CIPs have hub attributes and spoke attributes when ZXCTN9000 (2.08 32R1) acts as root node
A. Execute show logging current-alarm / show logging notify to check current alarm
B.Execute show interface b / show optical info interface xgei_11/1 to check basic status of interface
C.Execute show run / show logfile to check related configuratio
D.Check configuration of drive and main board/line card
