2016 first half network engineer exam morning real title (27-50)

2016 the first half of the Network engineer Exam is to prepare for the second half of the Network engineer Exam The best information, the following Greek soft Test college for you to organize the morning test, for your reference study.

2016 first half network engineer exam morning real problem (27-50)

DHCP dynamically assigns IP addresses, and if a host does not get a response from the DHCP server, the IP address that the host obtains is a network (27).

A 192.168.1.0/24

B 172.16.0.0/24

C 202.117.00/16

D 169.254.0.0/16

A network topology is shown.

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Use the command (28) on the router R2 to get the results as shown. PC1 the possible port address is (29), and the IP address of the so port of router R2 is (30). If the host's routing table is viewed on a PCL, the command is (31).

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(b) A. Nslookup

B Route print

C IP Routing

D Show IP routee

(A). 192.168.0.1

B 192.168.1.1

C 202.117.112.1

D 202.117.112.2

(A). 192.168.0.1

B 192.168.1.1

C 202.117.112.1

D 202.117.112.2

(A). Nslookup

B Route print

C IP Routing

D Show IP routee

The role of the DNS reverse lookup function is (32), the role of the resource record MX is (), and the DNS resource record (34) defines the reverse search for the zone.

(b) A. Define the alias name server

B Resolving IP addresses to domain names

C Define domain mail server addresses and priorities

D Defining an Authorization server for a zone

(A). Define the alias name server

B Resolving IP addresses to domain names

C Define domain mail server addresses and priorities

D Defining an Authorization server for a zone

() A. Soa

B Ns

C Ptr

D Mx

In a Linux system, the default Web root directory is (35) when using Apache servers.

A ..... \htdocs

B /var/www/html

C /var/www/usage

D ..... \conf

The following is a description of the Linux system file mount, which is correct (36).

A /can be used as a mount point

B A mount point can be a directory, or it can be a file

C Cannot mount a disk partition

D When the mount point is a directory, this directory must be empty

Enter xxxyftp.abc.com.cn in the address bar of the browser, where (37) is the host name to access.

A Xxxyfip

B Abc

C Com

D Cn

The following description of the DHCP service is correct (38).

A A DHCP server can only assign an IP address to the host of its network segment

B Set a longer lease time for mobile users

C DHCP server does not need to configure a fixed IP address

D Use Ipconfig/release to release the current IP address on a Windows client

When the message is received, the client establishes a connection with the POP3 server through (39) and the port used is (40).

(A). Udp

B Tcp

C HTTP

D HTTPS

(+) A. 25

B 52

C 1100

D 110

User B receives a digitally signed message m, in order to verify the authenticity of the message, the first need to obtain the User a digital certificate from the CA, the digital certificate contains (41), you can use (42) to verify the authenticity of the certificate, and then use (43) To verify the authenticity of M.

(A) A. A's public key

B A's private key

C B's Public key

D The private key of B

(A). CA's Public key

B The private key of B

C A's public key

D B's Public key

(+) A. CA's Public key

B The private key of B

C A's public key

D B's Public key

The key length of the 3DES is (44).

A 56

B 112

C 128

D 168

The following are not part of the Message authentication algorithm (45).

A MD5

B SHA-1

C RC4

D Hmac

The availability of device A is 0.98, and the availability of device a after parallel is (46) as shown.

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A 0.9604

B 09800

C 0.9996

D 0.9999

SNMP uses the datagram service provided by UDP, which is due to (47).

A UDP is more reliable than TCP

B UDP packets can be larger than TCP packets

C UDP is a connection-oriented transport mode

D Network management with UDP does not increase network load too much

In the SNMP configuration, the ability to respond to Manager2 's getrequest request is (48).

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A Agent1

B Agent2

C Agent3

D Agent4

When the client uses the ping command to detect a network connection failure, it can ping the IP address of the 127.0.0.1 and native, but it cannot ping the IP addresses of other computers that are working properly in the same network segment. The failure of the client could be (49).

A.TCP/IP Protocol not working properly

B The native NIC does not work properly

C Network line failure

D Native DNS server address setting error

Type a command in the DOS window of wmdows

C:\>nslookup

>set type=ptr

>211.151.91.165

The function of this command sequence is (50).

A. Querying 211.151.91.165 mail server information

B Querying mappings for 211.151.91.165 to domain names

C Querying the resource record type for 211.15191.165

D Displays the various information resource records available in 211.151.91.165

2016 first half network engineer exam morning real title (27-50)