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


Q2. ............. layer is responsible for ENCRYPTION.
(A) presentation
(B) session
(C) application
(D) network


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


Q4. 255.255.0.0 is default mask of ............. IP address.
(A) class a
(B) class b
(C) class c
(D) class d


Q5. 802.5 topology is called
(A) ethernet
(B) token bus
(C) token ring
(D) star


Q6. A closed path made by several branches of the network is known as
(A) branch
(B) loop
(C) junction
(D) circuit


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


Q8. ATM can be used for?
(A) local area network
(B) wide area network
(C) both (a) and (b)
(D) None of these


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


Q10. Combination of two or more networks are called
(A) Internetwork
(B) WAN
(C) MAN
(D) LAN


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


Q12. End to End layer is
(A) physical layer
(B) Data link layer
(C) Netowork layer
(D) Transport layer


Q13. FDDI is an example of which of these topologies
(A) ring
(B) star
(C) mesh
(D) bus


Q14. Fragmentation has following demerits
(A) complicates routers
(B) open to DOS attack
(C) overlapping of fragments.
(D) All of these


Q15. How many layers are in the OSI model?
(A) 4 layers
(B) 5 layers
(C) 6 layers
(D) 7 layers


Q16. How many layers are in the TCP/IP model?
(A) 4 layers
(B) 5 layers
(C) 6 layers
(D) 7 layers


Q17. IP address version 4 is in which format?
(A) 4 bit
(B) 8 bit
(C) 16 bit
(D) 32 bit


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


Q19. In Code Division Multiple Access, orthogonal sequence is unique for each
(A) channel
(B) token
(C) link
(D) station


Q20. question
(A) option2
(B) option3
(C) option4
(D) answer


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