CNE FINAL EXAM QUESTIONS WITH DETAILED
VERIFIED ANSWERS
In TCP/IP model, which of the following information belongs to the Data link
layer?
Choose one answer.
a. Logical address
b. Port number
c. MAC address
d. IP address - ans -c. MAC address
Which of the following device is mainly designed to work at Network layer?
Choose one answer.
a. Router
b. Hub
c. Bridge
d. Repeater - ans -a. Router
__________ displays network connections (both incoming and outgoing), routing
tables, and a number of network interface statistics.
Choose one answer.
a. nmap
b. tracert
c. netstat
d. DNS - ans -c. netstat
Which of the following protocols uses distance vector routing algorithm?
Choose one answer.
a. OSPF
b. BGP
c. EGP
,d. RIP - ans -d. RIP
How many IPs can be used to assign to destop PCs in subnet 192.168.5.0/29?
Choose one answer.
a. 8
b. 2
c. 14
d. 6 - ans -d. 6
On which layer does FTP work?
Choose one answer.
a. Network layer
b. Transport layer
c. Data Link layer
d. Application layer - ans -d. Application layer
What is a correct netmask for subnet 192.168.100.128/29
Choose one answer.
a. 255.255.255.224
b. 255.255.255.240
c. 255.255.255.248
d. 255.255.255.252 - ans -c. 255.255.255.248
A distributed network configuration in which all data/information pass through a
central computer is...
Choose one answer.
a. Point-to-point network
b. Ring network
c. Star network
d. Bus network - ans -c. Star network
Which address is the loopback address?
Choose one answer.
,a. 255.255.255.255
b. 127.0.0.1
c. 127.0.0.0
d. 0.0.0.1 - ans -b. 127.0.0.1
How far can a twisted pair cable be extended?
Choose one answer.
a. 100km
b. 50km
c. 100m
d. 5km - ans -c. 100m
Which of the following TCP/IP protocol is used for transferring electronic mail
messages from one machine to another?
Choose one answer.
a. FTP
b. OSPF
c. SMTP
d. SNMP - ans -c. SMTP
What is the command to restart Apache2 web server on Ubuntu Linux?
Choose one answer.
a. sudo /etc/init.d/apache2 restart
b. su /etc/init.d/apache2 restart
c. sudo /etc/init.d/apache2 start
d. su /etc/init.d/apache2 start - ans -a. sudo /etc/init.d/apache2 restart
What is the automated service that matches resource names with the required IP
address?
Choose one answer.
, a. DNS
b. HTTP
c. Telnet
d. SSH - ans -a. DNS
How many bits are there in an IPv6 network address?
Choose one answer.
a. 64
b. 16
c. 32
d. 128 - ans -d. 128
hat is a correct netmask for subnet 192.168.100.128/26?
Choose one answer.
a. 255.255.255.0
b. 255.255.255.192
c. 255.255.255.224
d. 255.255.255.128 - ans -b. 255.255.255.192
Which of the following device is mainly designed to work at Data link layer?
Choose one answer.
a. Router
b. Bridge
c. Switch
d. Hub - ans -c. Switch
What part of 192.168.10.51 is the Network ID, assuming a default subnet mask?
Choose one answer.
a. 51
VERIFIED ANSWERS
In TCP/IP model, which of the following information belongs to the Data link
layer?
Choose one answer.
a. Logical address
b. Port number
c. MAC address
d. IP address - ans -c. MAC address
Which of the following device is mainly designed to work at Network layer?
Choose one answer.
a. Router
b. Hub
c. Bridge
d. Repeater - ans -a. Router
__________ displays network connections (both incoming and outgoing), routing
tables, and a number of network interface statistics.
Choose one answer.
a. nmap
b. tracert
c. netstat
d. DNS - ans -c. netstat
Which of the following protocols uses distance vector routing algorithm?
Choose one answer.
a. OSPF
b. BGP
c. EGP
,d. RIP - ans -d. RIP
How many IPs can be used to assign to destop PCs in subnet 192.168.5.0/29?
Choose one answer.
a. 8
b. 2
c. 14
d. 6 - ans -d. 6
On which layer does FTP work?
Choose one answer.
a. Network layer
b. Transport layer
c. Data Link layer
d. Application layer - ans -d. Application layer
What is a correct netmask for subnet 192.168.100.128/29
Choose one answer.
a. 255.255.255.224
b. 255.255.255.240
c. 255.255.255.248
d. 255.255.255.252 - ans -c. 255.255.255.248
A distributed network configuration in which all data/information pass through a
central computer is...
Choose one answer.
a. Point-to-point network
b. Ring network
c. Star network
d. Bus network - ans -c. Star network
Which address is the loopback address?
Choose one answer.
,a. 255.255.255.255
b. 127.0.0.1
c. 127.0.0.0
d. 0.0.0.1 - ans -b. 127.0.0.1
How far can a twisted pair cable be extended?
Choose one answer.
a. 100km
b. 50km
c. 100m
d. 5km - ans -c. 100m
Which of the following TCP/IP protocol is used for transferring electronic mail
messages from one machine to another?
Choose one answer.
a. FTP
b. OSPF
c. SMTP
d. SNMP - ans -c. SMTP
What is the command to restart Apache2 web server on Ubuntu Linux?
Choose one answer.
a. sudo /etc/init.d/apache2 restart
b. su /etc/init.d/apache2 restart
c. sudo /etc/init.d/apache2 start
d. su /etc/init.d/apache2 start - ans -a. sudo /etc/init.d/apache2 restart
What is the automated service that matches resource names with the required IP
address?
Choose one answer.
, a. DNS
b. HTTP
c. Telnet
d. SSH - ans -a. DNS
How many bits are there in an IPv6 network address?
Choose one answer.
a. 64
b. 16
c. 32
d. 128 - ans -d. 128
hat is a correct netmask for subnet 192.168.100.128/26?
Choose one answer.
a. 255.255.255.0
b. 255.255.255.192
c. 255.255.255.224
d. 255.255.255.128 - ans -b. 255.255.255.192
Which of the following device is mainly designed to work at Data link layer?
Choose one answer.
a. Router
b. Bridge
c. Switch
d. Hub - ans -c. Switch
What part of 192.168.10.51 is the Network ID, assuming a default subnet mask?
Choose one answer.
a. 51
