Informatics Assistant 2018 Capsules -1

                                       DOITC Informatics Assistant   
                                       
                                                   Capsules -1

                                      (Computer Fundamental )

                           

Q.1 In which topology primary and secondary hubs are used?

A. Mesh Topology              B. Tree Topology

C. Bus topology D. Ring Topology

Q.2 What is the meaning of Bandwidth in Network?

A. The transmission capacity of communication channels

B. Connected Computers in the Network

C. Class of IP used in Network

D. None of Above

Q.3 ADSL is the abbreviation of

A. Asymmetric Dual Subscriber Line

B. Asymmetric Digital System Line

C. Asymmetric Dual System Line

D. Asymmetric Digital Subscriber Line

Q.4 What is the use of Bridge in Network?

A. to connect LANs  

B. to separate LANs

C. to control Network Speed

D. All of the above

Q.5 The router operates in which layer of OSI Reference Model?

A. Layer 1 (Physical Layer)

B. Layer 3 (Network Layer)

C. Layer 4 (Transport Layer)

D. Layer 7 (Application Layer

Q.6 Each IP packet must contain

A. Only Source address  

B. Only Destination address

C. Source and Destination address

D. Source or Destination address

Q.7 Bridge works in which layer of the OSI model?

A. Application layer B. Transport layer

C. Network layer D. Data link layer

Q.8. _______ provides a connection-oriented reliable service for sending messages

A. TCP                  B. IP   

C. UDP                 D. All of the above 

Q.9. Which layers of the OSI model are host-to-host layers?

A. Transport, Session, Presentation, Application

B. Network, Transport, Session, Presentation

C. Data link, Network, Transport, Session

D. Physical, Data link, Network, Transport

Q.10. Which of the following IP address class is Multicast

A. Class A                B. Class B 

C. Class C                D. Class D

Q.11 Which of the following is correct regarding Class B Address of IP address

A. Network bit – 16, Host bit – 16

B. Network bit – 16, Host bit – 14

C. Network bit – 18, Host bit – 16

D. Network bit – 12, Host bit – 14

Q.12. The last address of sub net mask represents

A. Unicast address              B. Network address

C. Broadcast addresses D. None of above

Q.13 How many bits are there in the Ethernet address?

A. 64 bits   B. 48 bits   C. 32 bits   D. 16 bits

Q.14 Direction of flow signal is define by?
A. Topology``                          B. Line Configuration
C. Transmission Mode             D. None Of above

Q.15 Why is IP Protocol considered as unreliable?
A. A packet may be lost  
B. Packets may arrive out of order
C. Duplicate packets may be generated
D. All of the above

Q.16 . What is the minimum header size of an IP packet?
A. 16 bytes                    B. 10 bytes       C. 20 bytes                   D. 32 bytes

Q.17 Which of the following provides reliable communication?
A. TCP              B. IP                C. UDP                    D. All of the above

Q.18 . What is the address size of IPv6?A. 32 bit    B. 64 bit   C. 128 bit   D. 256 bit

Q.19 What is the size of Network bits & Host bits of Class A of IP address?
A. Network bits 7, Host bits 24            B. Network bits 8, Host bits 24
C. Network bits 7, Host bits 23            D. Network bits 8, Host bits 23

Q.20 What does protocol define?
A. A protocol defines what data is communicated.
B. A protocol defines how data is communicated.
C. A protocol defines when data is communicated
.D. All of above.