违法和不良信息举报 联系客服
免费注册 登录

单选题Which of the following is TRUE about the ping  -f command?（）A  It is useful for diagnosing data dependent problems by filling the packet with the byte pattern following the f in the command line. B  It is useful for flooding from slow character based t

题目
单选题
Which of the following is TRUE about the ping  -f command?（）
A

 It is useful for diagnosing data dependent problems by filling the packet with the byte pattern following the f in the command line. 

B

 It is useful for flooding from slow character based terminals since it only displays a dot . for each packet sent in fast mode. 

C

 It is useful for flooding from slow character based terminals since it only displays a dot .       for each packet sent and a backspace on returned in fast mode. 

D

 The command can only be run by root.

参考答案和解析
正确答案： A
解析： 暂无解析
如果没有搜索结果或未解决您的问题，请直接 联系老师 获取答案。
相似问题和答案

第1题：

Which of the following answers can be verified as true based on the following command output from Router R1?（）R1show ip ospf virtual - linksVirtual Link OSPF_VL0 to router 4.4.4.4 is upRun as demand circuitDoNotAge LSA alloweD.Transit area 1, via interface FastEthernet0/1, Cost of using 3

A. R1 is configured with an area 0 virtual - link 4.4.4.4 cost 3 command.

B. The ping 4.4.4.4 command on R1 must currently be successful.

C. R1‘s Fa0/0 OSPF cost is 3.

D. 4.4.4.4 is known to R1 based on a Type 1 LSA in area 1.


参考答案：D

第2题：

A technician is attempting to use a command line prompt to continuously ping a remote server to check availability and reliability of the connection. Which of the following provides the ping command needed to continuously ping the system?（）

  • A、ping -a
  • B、ping -f
  • C、ping -r
  • D、ping -t

正确答案:D

第3题：

Regarding the extended ping command; which of the statements below are true?

(Select all valid answer choices)

A．The extended ping command is supported from user EXEC mode.

B．The extended ping command is available from privileged EXEC mode.

C．With the extended ping command you can specify the TCP and UDP port to be pinged.

D．With the extended ping command you can specify the timeout value.

E．With the extended ping command you can specify the datagram size.


正确答案：BDE
解析：Explanation:
The extended ping command works only at the privileged EXEC command line.
Some of the extended ping command values include the datagram size and timeout value as shown:

Datagram size [100]: Size of the ping packet (in bytes). Default: 100 bytes.

Timeout in seconds [2]: Timeout interval. Default: 2 (seconds). The ping is declared successful only if the ECHO REPLY packet is received before this time interval.

Incorrect Answers:
A. Regular pings are available in both user and privileged mode, but not extended pings.
C. Ports can not be specified.

第4题：

An administrator is testing setting the IP address on a Linux server from command line. Which of the following commands is used to set the default gateway for the server？（）

  • A、route
  • B、traceroute
  • C、ipconfig
  • D、nmap

正确答案:A

第5题：

Which of the following is TRUE about the ping  -f command?（）

  • A、 It is useful for diagnosing data dependent problems by filling the packet with the byte pattern following the "f" in the command line. 
  • B、 It is useful for flooding from slow character based terminals since it only displays a dot "." for each packet sent in fast mode. 
  • C、 It is useful for flooding from slow character based terminals since it only displays a dot "."       for each packet sent and a backspace on returned in fast mode. 
  • D、 The command can only be run by root.

正确答案:D

第6题：

Which of the following commands would result in the following output： M.M.M（）。

  • A、Ping 10.1.1.1 Data Pattern M
  • B、Ping 10.1.1.1 timeout 0
  • C、Ping 10.1.1.1 size 1500 df-bit
  • D、Ping 10.1.1.1 source loopback 0
  • E、Ping 10.1.1.1 size 1500
  • F、Ping 10.1.1.1 size 1500 Strict

正确答案:C

第7题：

A system administrator is trying to troubleshoot company wide email problems that may be related to DNS.  Which of the following network tools would be MOST useful to determine if it is a DNS issue？（）

  • A、netstat
  • B、tracert
  • C、nslookup
  • D、ping

正确答案:C

第8题：

If you want to test if fragmentation is causing problems on the network, which two ping command options are useful?()

A. ttl

B. size

C. rapid

D. do-not-fragment


参考答案：B, D

第9题：

Which of the following best describes the following command： ip flow-export destination192.168.1.50 1500？（）

  • A、it is not a valid NetFlow command
  • B、it is an SNMP command that exports 1500-byte packets to IP address 192.168.1.50
  • C、it is a NetFlov/ command that v/ill export 1500-byte packets to IP address 192.168.1.50
  • D、it is a NetFlov/ command that allows IP address 192.168.1.50 to send traffic to port 1500
  • E、It is a NetFlov/ command that v/ill specify that the NetFlov/ collector’s IP address is192.168.1.50 over UDP port 1500
  • F、It is an SNMP command that exports flows to destination address 1Q2.168.1.50 for packets upto an MTU of 1500

正确答案:E

第10题：

Which of the following commands is most useful in initially collecting data to determine a network performance problem？（）

  • A、 ping
  • B、 trace
  • C、 ifconfig
  • D、 lsattr

正确答案:A

更多相关问题
相关内容