IT / Computer Science MCQs

#81 which of the following network devices is used to forward data packets across different networks ?

A) switch
B) Router
C) Gateway
D) Modem
Answer: B

---

#82 _________ networking there are no dedicated server or hierarch among the computer.

A) Peer-to-peer
B) server
C) LAN
D) WAN
Answer: A

---

#83 ________ works by using the shared public infrastructure while maintaining privacy through security procedures.

A) LAN
B) WAN
C) VPN
D) MAN
Answer: C

---

#84 which of the following topology is most expensive implement ?

A) Star Topology
B) Bus Topology
C) Ring Topology
D) Mesh Topology
Answer: D

---

#85 How many layers does the OSI model consist of ?

A) 4
B) 5
C) 8
D) 7
Answer: D

---

#86 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

---

#87 ____________ Topology each node (computer server peripheral etc) attaches to a common cable.

A) Star
B) Tree
C) Ring
D) Mesh
Answer: C

---

#88 The frequency range of radio signal is between 3 KHz to ________ GHz.

A) 1
B) 2
C) 3
D) 4
Answer: A

---