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Home » Technical » Networking » Aptitude Test - 9
1.____________ is added to data packet for error detection.?
A. checksum bit
B. error bit
C. parity bit
D. checksum bit
2.When a host on network A sends a message to a host on network B, which address does the router look at?
A. port
B. logical
C. physical
D. port
3.How long is an IPv6 address?
A. 32 bits
B. 128 bits
C. 128 bytes
D. 32 bits
4.Which router command allows you to view the entire contents of all access lists?
A. show all access-lists
B. show access-lists
C. show ip interface
D. show all access-lists
5.What PPP protocol provides dynamic addressing, authentication, and multilink?
A. NCP
B. HDLC
C. X.25
D. NCP
6.Which of the following is private IP address?
A. 192.168.24.43
B. 168.172.19.39
C. 172.15.14.36
D. 192.168.24.43
7.Which class of IP address provides a maximum of only 254 host addresses per network ID?
A. Class A
B. Class B
C. Class C
D. Class A
8.Which of the following devices direct network traffic based not by MAC addresses but by software-configured network addresses?
A. Router
B. Hub
C. Bridge
D. Router
9.Which of the following network devices/systems translates data from one format to another?
A. Hub
B. DHCP Server
C. Gateway
D. Hub
10.Which of the following terms is used to describe a hardware- or software-based device that protects networks from outside threats?
A. NICcc
B. Gateway
C. Firewall
D. NICcc
11.The network layer concerns with.?
A. bits
B. packets
C. frames
D. bits
12.Which one of the following is not a function of network layer?
A. routing
B. inter-networking
C. congestion control
D. routing
13.The 4 byte IP address consists of:
A. network address
B. host address
C. both (a) and (b)
D. network address
14.In virtual circuit network each packet contains:
A. full source and destination address
B. a short VC number
C. both (a) and (b)
D. full source and destination address
15.The network layer protocol of internet is
A. internet protocol
B. ethernet
C. hypertext transfer protocol
D. internet protocol
16.Which of the following protocol assign IP’s dynamically to hosts available on the network?
A. DHCPS
B. DHXP
C. DHCP
D. DHCPS
17.In computer network, HDLC is?
A. Code transparent
B. Bit oriented
C. Code dependent
D. Code transparent
18.Transmission delay does not depend on ____________?
A. Transmission rate
B. Distance between the routers
C. Packet length
D. Transmission rate
19.The firewall works at network layer as:
A. Packet filter
B. Frame filter
C. Circuit filter
D. Packet filter
20.At which layer of OSI does Connection less connection is established?
A. Layer 1
B. Layer 2
C. Layer 3
D. Layer 1
21.Which class 125.8.200.1 IP address belongs to?
A. Class A
B. Class B
C. Class C
D. Class A
22.What is the range of the class C addresses?
A. 1-126
B. 129-193
C. 203-239
D. 1-126
23.DHCP is the abbreviation of?
A. Dynamic Host Control Protocol
B. Dynamic Host Configuration Protocol
C. Dynamic Hyper Control Protocol
D. Dynamic Host Control Protocol
24.Router operates in which layer of OSI Reference Model?
A. Physical Layer
B. Network Layer
C. Transport Layer
D. Physical Layer
25.Why IP Protocol is considered as unreliable?
A. A packet may be lost
B. Packets may arrive out of order
C. Duplicate packets may be generated
D. A packet may be lost
26.Which of the following is a transport layer protocol?
A. DNS
B. HTTP
C. TCP
D. DNS
27.The data link layer attempts to make?
A. Source to destination delivery
B. Process-to-process delivery
C. Hop-to-hop delivery
D. Source to destination delivery
28.A port address in TCP/IP is ______ bits long.?
A. 32
B. 48
C. 16
D. 32
29._______ is a process-to-process protocol that adds only port addresses, checksum error control, and length information to the data from the upper layer.?
A. TCP
B. UDP
C. IP
D. TCP
30.The_________ layer is responsible for the delivery of a message from one process to another.?
A. physical
B. transport
C. network
D. physical
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