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Modul Komputerlik zh

Total questions: 75

Worksheet time: 38mins

Name
Class
Date
1.

What is the primary function of a router in a network?

a)

Connects multiple networks and directs data packets

b)

Converts analog signals to digital signals

c)

Encrypts data for secure transmission

d)

Amplifies weak network signals

e)

Stores and manages website data

2.

Which of the following is a characteristic of fiber optic cables?

a)

Uses light to transmit data

b)

More susceptible to electromagnetic interference

c)

Slower data transmission speed than copper cables

d)

Uses electrical signals for data transmission

e)

Cannot be used for long-distance communication

3.

Which protocol is responsible for assigning IP addresses dynamically?

a)

DHCP

b)

HTTP

c)

DNS

d)

FTP

e)

SMTP

4.

What is the purpose of a subnet mask in networking?

a)

Divides an IP network into smaller subnetworks

b)

Encrypts data packets before transmission

c)

Establishes a secure VPN connection

d)

Converts IP addresses to MAC addresses

e)

Filters incoming and outgoing network traffic

5.

Which of the following is NOT a wireless communication standard?

a)

Ethernet

b)

Wi-Fi

c)

Bluetooth

d)

  5G

e)

   NFC

6.

Which of the following protocols is used for transmitting web pages?

a)

HTTP

b)

FTP

c)

SMTP

d)

SNMP

e)

DHCP

7.

Which network topology connects all nodes in a ring?

a)

Ring

b)

Star

c)

Bus

d)

Mesh

e)

Fully connected

8.

Which OSI model layer is responsible for establishing, maintaining, and terminating communication sessions?

a)

Session

b)

Data Link

c)

Physical

d)

Transport

e)

Application

9.

Which of these addresses is an IPv6 address?

a)

fe80::1

b)

255.255.255.0

c)

192.168.1.1

d)

172.16.0.1

e)

10.0.0.1

10.

The device used to connect multiple networks with different IP ranges is called:

a)

Router

b)

Switch

c)

Hub

d)

Repeater

e)

Bridge

11.

Whats 1st layer of OSI?

a)

Physical

b)

Application

c)

Presentation

d)

Session

e)

Transport

12.

What does the OSI physical layer consist of?

a)

Media, signals and binary transmission

b)

End-to-end connections and reliability

c)

Path determination and IP

d)

Interhost communication

e)

MAC and LLC

13.

Directly connects to each to other and transmits data between link. What's topology is it?

a)

Bus

b)

Ring

c)

Star

d)

Tree

e)

Mesh

14.

What is device whose primary purpose is to connect 2 or more networks and determine the next network point to which the data should be forwarded toward its destination?

a)

Router

b)

Bridge

c)

Switch

d)

HUB

e)

Server

15.

What's transmission mode is whereby the transmission of data is possible on only one direction?

a)

Simplex

b)

Full-Duplex

c)

Half-Duplex

d)

Star

e)

Bus

16.

How modem works?

a)

Modulate the bit data into wave data suitable for transmission on public telephone lines

b)

Uses the ordinary telephone handset to establish the communication link

c)

Link a number of terminal which are close together

d)

Connect 2 devices or a device to a port

e)

Physically connects network together

17.

What is the network layer?

a)

Transmits data from one transmitting station to another.

b)

Is used to convert the bit data into wave data suitable for transmission on public telephone lines.

c)

Not the deals with data formatting, encryption, and compression.

d)

Manages end-to-end communication and ensures reliable data delivery between applications.

e)

Is responsible for physical connections and converting binary data into electrical signals.

18.

The basic components of a data transmission system are:

a)

Central computer, terminal devices, telecommunications link between the central computer & the terminal devices.

b)

A power supply, peripheral devices, an internet browser.

c)

An operating system, external hard drives, a bluetooth connection

d)

A wireless router, cloud storage, a firewall.

e)

A keyboard and mouse, smartphone, local printer.

19.

Transmission is possible in 3 modes:

a)

Simplex, half-duplex, full-duplex.

b)

Single-duplex, double-duplex, multi-duplex.

c)

Mono-duplex, semi-duplex, ultra-duplex.

d)

Reverse-duplex, hybrid-duplex.

e)

Single-duplex, simplex, ultra-duplex.

20.

What is the network?

a)

Is an interconnection of two or more computing devices.

b)

Is a single device that works independently without only connections.

c)

Is an interconnection of only one computing device with itself.

d)

Is a group of devices that can never share data or resources.

e)

Is an interconnection of household appliances like microwaves and refrigerators.

21.

is a device used where data from several sources is needed to be send down a single line at the same time?

a)

Multiplexer

b)

Modem

c)

Hub

d)

Switch

e)

Demultiplexer

22.

What is the main factor that distinguishes a local area network (LAN) from other types of networks?

a)

Limited geographic area, typically up to 10 km

b)

Ability to connect devices all over the world

c)

No need for routers

d)

Use of satellite connections to transmit data

e)

Requirement for multiple central controllers to transmit data

23.

Which network component is used to connect multiple devices and transmit data only to a specific recipient, rather than to all devices on the network?

a)

Switch

b)

Hub

c)

Bridge

d)

Network Interface Card (NIC)

e)

Firewall

24.

Which data transfer mode allows information to be transmitted in both directions at the same time?

a)

Asynchronous

b)

Half-duplex

c)

Full-duplex

d)

Serial

e)

Simplex

25.

Which medium access control protocol is used in Wi-Fi wireless networks?

a)

CSMA/CA

b)

CSMA/CD

c)

Token Ring

d)

ALOHA

e)

Polling

26.

What is the primary function of the Network Layer in the OSI model?

a)

Determines the best path for transmitting packets to their destination across multiple networks.

b)

Manages the establishment, maintenance, and termination of connections between applications.

c)

Encrypts data to ensure its privacy during transmission.

d)

Provides interfaces for applications to interact with the network.

e)

Controls the physical transmission of data over the transmission medium.

27.

Data transmission is possible in:

a)

3 modes

b)

4 modes

c)

2 modes

d)

5 modes

e)

1 mode

28.

Full-duplex mode:

a)

Transmission of data is possible in both directions simultaneously

b)

Transmission of data is possible in both directions, but one direction at a time.

c)

This is whereby the transmission of data is possible in only one direction.

d)

Transmission of data is not possible in this mode

e)

All answers are wrong

29.

What is the purpose of the modulator?

a)

To convert the bit data into wave data

b)

To modulate the wave data into a bit data

c)

To encrypt the data

d)

To decrypt the data

e)

To broadcast the data

30.

Data transfer speed limit of acoustic coupler:

a)

300 bits/second

b)

150 bits/second

c)

200 bits/second

d)

500 bits/second

e)

250 bits/second

31.

When was the OSI originally published?

a)
In 1984
b)

   In 1976

c)

   In 1971

d)

  In 1986

e)

  In 1978

32.

What OSI layer acts as the foundation for the other layers?

a)

The Physical layer

b)

The Network layer

c)

The Application layer

d)

The Transport layer

e)

The Session layer

33.

Number of Network topology types:

a)

6

b)

5

c)

3

d)

4

e)

2

34.

The Data Link Layer is divided into:

a)

2 sub-layers

b)

3 sub-layers

c)

4 sub-layers

d)

5 sub-layers

e)

6 sub-layers

35.

Maximum span of LAN:

a)

10 km

b)

50 km

c)

20 km

d)

5 km

e)

15 km

36.

How does hub send the data?

a)

Through broadcasting

b)

Hub sends the data only the destined computer

c)

It can't send the data, but only receive

d)

I have no idea

e)

Through bridging

37.

What's 2nd layer of OSI?

a)

Data Link

b)

Application

c)

Presentation

d)

Session

e)

Transport

38.

What's 3rd layer of OSI?

a)

Network

b)

Physical

c)

Presentation

d)

Session

e)

Application

39.

What's 4th layer of OSI?

a)

Transport

b)

Physical

c)

Presentation

d)

Session

e)

Application

40.

What's 5th layer of OSI?

a)

Session

b)

Physical

c)

Presentation

d)

Network

e)

  Application

41.

What’s 6th layer of OSI?

a)

Presentation

b)

Physical

c)

Network

d)

Session

e)

Application

42.

What’s 7th layer of OSI?

a)

Application

b)

Physical

c)

Presentation

d)

Session

e)

Network

43.

What’s function of Network Layer encapsulates data into packet for efficient transmission?

a)

Packetizing

b)

Host-to-Host Delivery

c)

Forwarding

d)

Fragmentation

e)

Logical Subnetting

44.

What’s function of Network Layer ensures data is delivered from the sender to the intended receiver across networks?

a)

Host-to-Host Delivery

b)

Packetizing

c)

Forwarding

d)

Fragmentation

e)

Logical Subnetting

45.

What's function of Network Layer is the process of moving packets from the input to the appropriate output interface in a router, based on the destination address?

a)

Forwarding

b)

Packetizing

c)

Host-to-Host Delivery

d)

Fragmentation

e)

Logical Subnetting

46.

Which two error detection/correction methods are used in the Data Link Layer?(2)

a)

Quantum Cryptography

b)

Diffie-Hellman Key Exchange

c)

AES Encryption

d)

Hamming Code

e)

Parity Bit

47.

Which two statements about Ethernet (IEEE 802.3) are correct?(2)

a)

It follows the IEEE 802.3 standard

b)

It is used only in wireless networks

c)

It requires polling for communication

d)

It exclusively supports 100 Mbps speed

e)

It uses CSMA/CD for medium access

48.

Which two access control methods are implemented in different network technologies?(2)

a)

CSMA/CD

b)

CSMA/CA

c)

Packet Switching

d)

HTTP

e)

Circuit Switching

49.

Which two framing techniques are used to mark the boundaries of frames?(2)

a)

Byte Stuffing

b)

Optical Encoding

c)

Packet Fragmentation

d)

Bit Stuffing

e)

Frequency Modulation

50.

Which two functions are handled by the Data Link Layer?(2)

a)

Framing

b)

Flow Control

c)

Routing

d)

IP Addressing

e)

Encryption

51.

Select two network components:(2)

a)

The Services

b)

The Physical

c)

Bus

d)

Star

e)

Ring

52.

Physical Component of the Network:(2)

a)

Metropolitan Area Network

b)

Local Area Network

c)

VPN

d)

Intermediary Network Devices

e)

End Devices or Host

53.

How works Dataplex?(2)

a)

Links a number of terminals which are close together

b)

And then transmit data to the central computer

c)

Make your data confidencial

d)

Transmit data

e)

Plugs into the computer and has receptacle into which the telephone handset is placed

54.

Select 1st and last layer of OSI model:(2)

a)

Network

b)

Session

c)

Presentation

d)

Physical

e)

Application

55.

The Data Link Layer divided into 2 sub-layer:(2)

a)

Logical Link Control

b)

Media Access Control

c)

Random Process Protocols

d)

Controlled Access Protocols

e)

Filtering Frames

56.

Different networks use different MAC protocols for efficient access:(2)

a)

CSMA/CD

b)

Controlled Access Protocols

c)

Polling, Ethernet

d)

Stop-and-wait protocol

e)

Random Process Protocols

57.

Which two functions are handled by the Data Link Layer?(2)

a)

Framing

b)

Error Control

c)

Flow Control

d)

Routing

e)

     IP Addressing

58.

Which two statements about Ethernet (IEEE 802.3) are correct?(2)

a)

A) It uses CSMA/CD for medium access

b)

C) It is used only in wireless networks

c)

B) It follows the IEEE 802.3 standard

d)

E) It exclusively supports 100 Mbps speed

e)

D) It requires polling for communication

59.

Physical Component of the Network:(2)

a)

Local Area Network

b)

VPN

c)

Intermediary Network Devices

d)

Metropolitan Area Network

e)

End Devices or Host

60.

The Data Link Layer divided into 2 sub-layer:(2)

a)

A) Logical Link Control

b)

B) Media Access Control

c)

C) Random Process Protocols

d)

D) Controlled Access Protocols

e)

E) Filtering Frames

61.

What are the functions of fragmentation in the network layer?(3)

a)

Splitting large packets into smaller fragments

b)

Supporting devices with different MTU sizes

c)

Reducing the load on routers

d)

Improving signal quality

e)

Speeding up data transmission

62.

Which packet forwarding methods are used in the network layer?(3)

a)

Routing through intermediate nodes

b)

Broadcasting

c)

Indirect delivery

d)

Physical bit transmission

e)

Direct delivery

63.

What is the difference between routing and flooding?(3)

a)

Flooding works only in wireless networks

b)

Flooding prevents packet loss

c)

Routing is more resource-efficient

d)

Flooding transmits packets without route selection

e)

Routing determines the optimal path, while flooding sends packets to all nodes

64.

What is the main function of the network layer in the OSI model?(3)

a)

Physical transmission of bits

b)

Assigning logical address

c)

Packet forwarding

d)

Fragmentation and reassembly

e)

Flow control management

65.

Which of the following protocols operate at the network layer?(3)

a)

IP

b)

ICMP

c)

ARP

d)

RARP

e)

HTTP

66.

What are the main tasks of routing in the network layer?(3)

a)

Detecting errors in data transmission

b)

Optimizing IP address usage

c)

Fragmentation and reassembly of packets

d)

Delivering packets through intermediate nodes

e)

Determining the best path for packet transmission

67.

Which of the following protocols are used for routing?(3)

a)

FTP

b)

OSPF

c)

DHCP

d)

RIP

e)

BGP

68.

What are the functions of Network Address Translation (NAT)?(3)

a)

Mapping private IP addresses to public IP addresses

b)

Enhancing network security

c)

Conserving IPv4 addresses

d)

Assigning unique MAC addresses

e)

   Detecting duplicate IP addresses

69.

What are the advantages of the network layer?(3)

a)

Optimized data transmission

b)

Error detection and correction in transmitted data

c)

Improved routing efficiency

d)

Division of large networks into subnets

e)

Minimization of transmission delays

70.

What are the limitations of the network layer?(3)

a)

Lack of flow control mechanism

b)

Low security levels

c)

Possible packet loss due to network congestion

d)

High dependency on physical devices

e)

Lack of effective error control

71.

Logical Link Control sub layer’s functions:(3)

a)

Control access to the transmission medium

b)

Interfaces with the Network Layer

c)

Identifies network protocols like IPv4, IPv6

d)

Uses MAC address to uniquely identify devices

e)

Handles Error control and flow control

72.

Which of the above are routing protocols?(3)

a)

Routing Information Protocols (RIP)

b)

Open Shortest Path First (OSPF)

c)

Border Gateway Protocol (BGP)

d)

Internet Protocol

e)

Address Resolution Protocol

73.

What are the functions of Network Address Translation (NAT)?(3)

a)

Conserving IPv4 addresses

b)

Mapping private IP addresses to public IP addresses

c)

Enhancing network security

d)

Assigning unique MAC addresses

e)

Detecting duplicate IP addresses

74.

What is the difference between routing and flooding?(3)

a)

Routing determines the optimal path, while flooding sends packets to all nodes

b)

Flooding prevents packet loss

c)

Flooding transmits packets without route selection

d)

Routing is more resource-efficient

e)

Flooding works only in wireless networks

75.

The main tasks of routing in the network layer are:(3)

a)

Determining the best path for packet transmission

b)

Error detection and correction

c)

Data encryption and decryption

d)

Fragmentation and reassembly of packets

e)

Delivering packets through intermediate nodes

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