Q1. In asymmetric key cryptography, the private key is kept by
(A) sender
(B) receiver
(C) sender and receiver
(D) all the connected devices to the network
Answer: receiver
Explanation:
Q2. ............. layer is responsible for ENCRYPTION.
(A) presentation
(B) session
(C) application
(D) network
Answer: presentation
Explanation:
Q3. 192.168.1.5 is a
(A) Class A IP ADDRESS
(B) Class B IP ADDRESS
(C) Class C IP ADDRESS
(D) none of the above
Answer: CLASS C IP Address
Explanation: 0 - 127 come under class A 128-191 come under clas B 192-223 come under clas C 224-239 come under clas D 240-255 come under clas E IN IPV4 DOTTED DECIMAL NOTATION
Q4. 255.255.0.0 is default mask of ............. IP address.
(A) class a
(B) class b
(C) class c
(D) class d
Answer: class B
Explanation:
Q5. 802.5 topology is called
(A) ethernet
(B) token bus
(C) token ring
(D) star
Answer: token ring
Explanation:
Q6. A closed path made by several branches of the network is known as
(A) branch
(B) loop
(C) junction
(D) circuit
Answer: loop
Explanation:
Q7. A subset of a network that includes all the routers but contains no loops is called
(A) spanning tree
(B) spider structure
(C) spider tree
(D) None of these
Answer: spanning tree
Explanation:
Q8. ATM can be used for?
(A) local area network
(B) wide area network
(C) both (a) and (b)
(D) None of these
Answer: both (a) and (b)
Explanation:
Q9. Bluetooth technology is the implementation of a protocol defined by the standard:
(A) IEEE 802.11
(B) IEEE 802.15
(C) IEEE 802.14
(D) IEEE 802.16
Answer: IEEE 802.15
Explanation:
Q10. Combination of two or more networks are called
(A) Internetwork
(B) WAN
(C) MAN
(D) LAN
Answer: Internetwork
Explanation:
Q11. Dual-stack approach refers to
(A) Implementing Ipv4 with 2 stacks
(B) Implementing Ipv6 with 2 stacks
(C) support IPv6 in already existing systems
(D) None of the mentioned
Answer: support IPv6 in already existing systems
Explanation:
Q12. End to End layer is
(A) physical layer
(B) Data link layer
(C) Netowork layer
(D) Transport layer
Answer: Transport layer
Explanation:
Q13. FDDI is an example of which of these topologies
(A) ring
(B) star
(C) mesh
(D) bus
Answer: ring
Explanation:
Q14. Fragmentation has following demerits
(A) complicates routers
(B) open to DOS attack
(C) overlapping of fragments.
(D) All of these
Answer: All of these
Explanation:
Q15. How many layers are in the OSI model?
(A) 4 layers
(B) 5 layers
(C) 6 layers
(D) 7 layers
Answer: 7 layers
Explanation:
Q16. How many layers are in the TCP/IP model?
(A) 4 layers
(B) 5 layers
(C) 6 layers
(D) 7 layers
Answer: 4 layers
Explanation:
Q17. IP address version 4 is in which format?
(A) 4 bit
(B) 8 bit
(C) 16 bit
(D) 32 bit
Answer: 32 bit
Explanation:
Q18. If the value in protocol field is 17, the transport layer protocol used is ____.
(A) TCP
(B) UDP
(C) Either of the mentioned
(D) None of the mentioned
Answer: UDP
Explanation:
Q19. In Code Division Multiple Access, orthogonal sequence is unique for each
(A) channel
(B) token
(C) link
(D) station
Answer: station
Explanation:
Q20. question
(A) option2
(B) option3
(C) option4
(D) answer
Answer: option1
Explanation: explanation
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