IBM(000-101)

单选题Which ports must be left open if an administrator plans to perform Dynamic LPAR operations?()Aport 21(ftp):tcp and port 657(rmc):tcpBport 22(ssh):tcp and port 657(rmc):udpCport 657(rmc):tcp and port 657(rmc):udpDport 161(snmp):tcp and port 161(snmp):ud

题目
单选题
Which ports must be left open if an administrator plans to perform Dynamic LPAR operations?()
A

 port 21(ftp):tcp and port 657(rmc):tcp

B

 port 22(ssh):tcp and port 657(rmc):udp

C

 port 657(rmc):tcp and port 657(rmc):udp

D

 port 161(snmp):tcp and port 161(snmp):udp

参考答案和解析
正确答案: C
解析: 暂无解析
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相似问题和答案

第1题:

You configure your Windows 2000 Professional computer for Internet Connection Sharing and for TCP/IP filtering as shown in the exhibit.

You test your TCP/IP filtering configuration from another client computer. You can access web sites, but you cannot access FTP sites.

What should you do to be able to access FTP sites?

A.Add Port 21 to the TCP Ports section.

B.Add Port 138 to the TCP Ports section.

C.Add Port 21 to the IP Ports section.

D.Add Port 138 to the IP Ports section.


正确答案:A
解析:Explanation: The FTP protocol uses the TCP port 21. In the exhibit the UDP port 21 has been incorrectly added instead of the TCP port.

Incorrect answers:
B: The FTP protocol uses Port 21 not Port 138.

C: The port 21 should be added as a TCP port 21, not as a UDP port or as an IP protocol. IP is also a network protocol and not a port.

D: The FTP protocol uses TCP port 21 not port 138. IP is also a network protocol and not a port.

第2题:

一个到远程主机的TELNET会话默认的端口号是()。

A.UDP port21

B.UDP port23

C.TCPport21

D.TCP port23


参考答案:D

第3题:

On which destination port in the Layer 4 header does BGP listen?()

A. UDP port 169

B. TCP port 169

C. UDP port 179

D. TCP port 179


参考答案:D

第4题:

Which two ports are used with RADIUS authentication and authorization?()

  • A、UDP port 1812
  • B、UDP port 2000
  • C、TCP port 2002
  • D、UDP port 1645

正确答案:A,D

第5题:

What is the port number of the IPsec Authentication Header packet?()

  • A、IP protocol 50
  • B、TCP port 51
  • C、UDP port 50
  • D、IP protocol 51
  • E、UDP port 51
  • F、TCP port 50

正确答案:D

第6题:

WhichportsmustbeleftopenifanadministratorplanstoperformDynamicLPARoperations?()

A.port21(ftp):tcpandport657(rmc):tcp

B.port22(ssh):tcpandport657(rmc):udp

C.port657(rmc):tcpandport657(rmc):udp

D.port161(snmp):tcpandport161(snmp):udp


参考答案:C

第7题:

What is the port number of an IPsec Encapsulating Security Payfoad packet?()

  • A、UOP port 50
  • B、IP protocol 51
  • C、TCP port 51
  • D、TCP port 50
  • E、IP protocol 50
  • F、UDP port51

正确答案:E

第8题:

Which protocol supports LDP sessions?()

A. SIP (port 626)

B. TCP (port 646)

C. UDP (port 606)

D. IP (protocol code LDP)


参考答案:B

第9题:

Which of the following descriptions about IP spoofing is correct?()

  • A、IP source address is forged
  • B、IP destination address is forged
  • C、IP TCP source port is forged
  • D、IP TCP destination port is forged
  • E、None of above

正确答案:A

第10题:

Which ports must be left open if an administrator plans to perform Dynamic LPAR operations?()

  • A、 port 21(ftp):tcp and port 657(rmc):tcp
  • B、 port 22(ssh):tcp and port 657(rmc):udp
  • C、 port 657(rmc):tcp and port 657(rmc):udp
  • D、 port 161(snmp):tcp and port 161(snmp):udp

正确答案:C

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