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#101 ________ works by using the shared public infrastructure while maintaining privacy through security procedures.
A) LAN
B) WAN
C) VPN
D) MAN
Answer: C
#102 which of the following topology is most expensive implement ?
A) Star Topology
B) Bus Topology
C) Ring Topology
D) Mesh Topology
Answer: D
#103 How many layers does the OSI model consist of ?
A) 4
B) 5
C) 8
D) 7
Answer: D
#104 How many layers does the OSI model consist of ?
A) 4
B) 5
C) 8
D) 7
Answer: D
#105 which layer of OSI model decided which physical path-way the data should take to reach the destination ?
A) Transport layer
B) presentation layer
C) network layer
D) session layer
Answer: D
#106 which layer of OSI model decided which physical path-way the data should take to reach the destination ?
A) Transport layer
B) presentation layer
C) network layer
D) session layer
Answer: D
#107 ____________ Topology each node (computer server peripheral etc) attaches to a common cable.
A) Star
B) Tree
C) Ring
D) Mesh
Answer: C
#108 The frequency range of radio signal is between 3 KHz to ________ GHz.
A) 1
B) 2
C) 3
D) 4
Answer: A
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