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Chapter 2
Chapter 2
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1
What is the central connection point in a star topology called?
Hub node
Bridge
End node
Repeater
2
What is the primary function of the Physical layer in the TCP/IP model?
Dealing with the physical transmission medium
Interacting with application programs
Routing packets through possible routes
Establishing connections between network devices
3
What does WLAN stand for?
Wired Local Area Network
Wireless Local Area Network
Web Local Area Network
Wide Local Area Network
4
The Dynamic Host Configuration Protocol (DHCP) is used for:
Automatically assigning IP addresses
Translating domain names to IP addresses
Encrypting data transfers
Resolving physical addresses into IP addresses
5
What is the definition of WLAN?
A network connecting devices within a small geo area using radio waves.
A network exclusively used for mobile devices in a confined space.
A network primarily using fiber optic cables for data transmission.
A network covering a large geographical area using satellite communication.
6
What does SMTP stand for, and what is its primary function?
Simple Mail Transfer Protocol; sending emails
Simple Message Transmission Protocol; messaging services
Secure Message Transfer Protocol; secure messaging
Secure Mail Transfer Protocol; encrypting emails
7
How are devices connected in a ring topology network?
Directly to the network server
To a central device
Randomly to any device
To two neighbor devices
8
Which of the following examples typically use LAN?
Covering an entire city or country.
Covering a large geographical area.
Coffee shops with public Wi-Fi
Offices, schools, and homes
9
Which protocol helps in the automatic assignment of IP addresses?
ARP
NAT
UDP
DHCP
10
What is the purpose of a hub in a network?
To increase the network's data transfer speed.
To convert analog signals into digital data.
To route data packets based on their IP addresses.
To link multiple wires from various branches, acting as multi-port repeater
11
Transmission Control Protocol (TCP) is essential for:
Establishing a logical connection before data transfer
Assigning dynamic IP addresses
Mapping IP addresses to physical addresses
Connectionless data transmission
12
A Wi-Fi network is a type of:
LAN
WAN
PAN
WLAN
13
A VLAN helps to improve:
The physical distance covered by the network.
Network performance and security.
The speed of the internet connection.
The wireless signal strength.
14
The HTTPS protocol is primarily used for:
Streaming media content
Transferring files from one host to another
Sending emails between servers
Secure communication over the internet
15
The term 'modem' is short for what?
Modular-Demultiplexer.
Monitor-Detector.
Modulator-Demodulator.
Modulator-Demonstrator.
16
What is the function of a router?
To route data and allow multiple computers to connect to a network.
To regenerate a weak or corrupted signal.
To modulate and demodulate signals.
To connect a computer to the network.
17
Which type of network is the most common?
MAN
LAN
WAN
PAN
18
In tree topology, what is the function of the central node?
It serves as the primary hub.
It operates as a secondary hub.
It acts as a repeater.
It functions as an end device.
19
What is the main purpose of using the DNS (Domain Name System)?
Translating domain names into IP addresses
Assigning IP addresses
Establishing secure email transmissions
Encrypting data
20
NAT is used for:
Resolving domain names to IP addresses
Secure web browsing
Mapping local private addresses to a public one
Creating a logical connection before data transfer
21
The Application layer of the TCP/IP model does NOT include which of the fol
SMTP
DHCP
DNS
HTTPS
22
Which device allows computers to communicate within a network?
Switch
Router
Modem
Repeater
23
How is each node in a tree topology network connected to the central node?
Wirelessly
In a closed loop
Via multiple paths
Through a single path
24
What are the five components of a data communications system?
Data, Computer, Phone, Cable, Language
Text, Picture, Video, Audio, Radio
Message, Signal, Router, Satellite, Modem
Message, Sender, Receiver, Protocol, Medium
25
During the midterm, there is no true/false answer.
Question: A bridge is a repeater too
True
False
26
What is another name for bus network topology?
Star topology
Ring topology
Mesh topology
Backbone topology
27
FTP stands for:
File Transfer Protocol
File Transmission Protocol
Fast Transfer Process
Final Transfer Protocol
28
What is a MAC address also known as?
Main Access Control Address
Media Access Control Address
Machine Access Code Address
Media Acquisition Code Address
29
Which statement best describes the structure of a ring network?
Devices are connected in a star pattern.
Devices are connected in a hierarchical structure.
The network forms a loop.
The network does not have a specific structure.
30
For what purpose are tree topologies often used?
Large networks
Temporary network setups
Personal home networks
Small, simple networks
31
What does VLAN stands for?
Very Large Area Network
Virtual Local Area Network
Volatile Local Access Network
Variable Local Access Network
32
Network Address Translation (NAT) is a technique used for:
Resolving domain names to IP addresses
Assigning static IP addresses to devices
Encrypting network traffic
Mapping multiple local private addresses to a public one
33
In a Data Communications system, the message refers to:
The sender
The communication channel
The receiver
The data being communicated
34
What does TCP/IP stand for?
Transmission Command Protocol/Intranet Protocol
Transactional Control Protocol/Interface Protocol
Transfer Control Protocol/Internet Process
Transmission Control Protocol/Internet Protocol
35
What is a protocol in data communication?
A device that connects computers to the internet.
A type of transmission medium.
A method for charging for communication services.
A set of rules that govern data communications.
36
What are the popular forms of information in a data communication system?
Text, numbers, pictures, audio, and video.
Numbers and spreadsheets exclusively.
Audio and video only.
Text, pictures, audio and databases only.
37
In a Data Communications system, which of the following are examples of transmission media?
Telephone line and Morse code
Fiber-optic cable and smoke signals
Radio waves and twisted-pair wire
Coaxial cable and carrier pigeons
38
What is the transmission medium in data communication?
The language used to compose the message.
The device that initiates the communication.
The software that controls the flow of data.
The physical path by which a message travels from sender to receiver.
39
"It is a language between devices." Which of the following best fits this description?
Transmission medium
Protocol
Router
Network interface card (NIC)
40
An IP address is unique and identifies a device on the internet or a local
Internet Process
Internal Process
Internal Protocol
Internet Protocol
41
Which layer of the TCP/IP model is responsible for establishing a logical connection
Physical layer
Transport layer
Network layer
Application layer
42
A VLAN is best described as:
A wireless network extension.
A physical network separated by geographical boundaries.
A logical grouping of network switch ports.
A network with a centralized data center.
43
A Data Communications system consists of:
Four components
Five components
Two components
Three components
44
What is a NIC?
A network adapter used to connect a computer to the network.
A type of transmission medium.
A device that routes data between different networks.
A protocol that governs data communication.
45
What defines a hybrid network topology?
Avoiding the use of standard network topologies
Implementing a single, uniform design for all network devices
Combining two or more different network topologies
Using one type of network topology throughout
46
What is a (LAN)?
A network based solely on wireless technology.
A network that connects entire continents.
A network that covers an entire country.
A network that connects computers at a single physical location.
47
How are devices connected in a bus network topology?
In a circular pattern
To a main cable via drop lines
To a central hub
Directly to each other
48
What does MAN stand for in terms of Networking?
Multiple Access Network
Managed Access Network
Metropolitan Area Network
Medium Area Network
49
A physical layer in the TCP/IP model is responsible for:
Error detection and correction
Handling the physical connection between devices
Encrypting data transmissions
Routing and forwarding data packets
50
What does telecommunication include?
The transmission of data exclusively via the internet.
Telephony, television, and telegraphy.
Communication using only fiber-optic cables.
Only the use of telephones for communication.
51
What type of connection is used between devices in a ring topology?
Multi-point
Hub and spoke
Point-to-point
Wireless
52
What functionality does a bridge add compared to a repeater?
It filters content by reading the MAC addresses of source and destination.
It extends the Wi-Fi range for wireless devices.
It modulates and demodulates data signals.
It acts as a multi-port modem.
53
A logical network topology primarily defines:
The way data flows through the network.
The type of network cables used.
The geographical distribution of network devices.
The physical arrangement of cables and devices.
54
What does ARP stand for and what is its function?
Application Resolution Protocol; managing application layer protocols
Automated Routing Protocol; routing data packets through the network
Access Relay Protocol; providing access control in networks
Address Resolution Protocol; discovering physical addresses associated with
55
What type of connection is used between devices in a mesh network?
Hub and spoke
Multi-point
Wireless
Point-to-point
56
Port numbers are used to:
Uniquely identify connection endpoints
Identify devices on the network
Encrypt data transfers
Assign IP addresses to devices
57
User Datagram Protocol (UDP) is used for which type of applications?
Email
Secure web browsing
File transfer
Online gaming and media streaming
58
Which protocol is described as a foundation of the World Wide Web for trans
DNS
SMTP
HTTP
FTP
59
Which device is considered a 'receiver' in a data communication system?
A device that connects multiple computers to a network.
A device that receives the data message.
A device that amplifies the signal strength.
A device that sends the data message.
60
What is data communication?
The encryption of data for security purposes.
The storage of data in a database system.
The process of transmitting and receiving data between two or more devices
The manipulation of data to generate reports.
61
What is the purpose of a repeater?
To filter content by reading MAC addresses.
To modulate signals into a format suitable for transmission.
To connect wireless devices to a wired network.
To regenerate the signal over the same network before it becomes too weak
62
When a router is connected to a modem, what does it provide to the network?
Internet access
Printer access
Firewall protection
Local area network (LAN) access
63
What device connects to an Internet Service Provider (ISP) like STC to provide internet access?
Bridge
Switch
Router
Modem
64
What does LAN stand for in terms of Networking?
Local Area Network
Localized Access Network
Large Area Network
Longitudinal Area Network
65
Which network type is larger than a LAN but smaller than a WAN?
VLAN
PAN
WLAN
MAN
66
What is the primary role of the Network layer in the TCP/IP model?
Encrypting data for secure communication
Routing packets through the network
Segmenting and reassembling data packets
Converting data into electrical signals
67
What is the main purpose of the ARP protocol?
Encrypting data for secure transmission
Assigning IP addresses to host devices
Discovering the physical address associated with an IP address
Transferring files between machines
68
Telegraphy means:
Transmitting signals wirelessly
Writing letters by hand
Sending messages securely
Communicating over far distances
69
In data communication, what is the role of the sender?
To receive and interpret the data message.
To encode the data message into signals.
To route data messages to the correct network path.
To send the data message.
70
What determines how nodes in a network are connected?
Network switch
Network protocol
Network topology
Network adapter
71
Which network is defined as the connection of several LANs linked together to cover an entire city or country?
MAN
SAN
WAN
WLAN
72
During the midterm, there is no true/false answer.
Question: Does a router necessarily connect to the internet?
True
False
73
What analogy is used to describe the connections of nodes in a tree topology?
Nodes are like flowers blooming on a plant.
Nodes are like branches coming off of the trunk.
Nodes are like leaves absorbing sunlight.
Nodes are like roots spreading out from the seed.
74
Which of the following protocols is NOT primarily associated with the Appli
HTTPS
SMTP
UDP
FTP
75
Radio waves and Coaxial cable are examples of:
Sender
Message
Receiver
Transmission media
76
What is the primary difference between a WLAN and a LAN?
WLANs use radio transmissions, while LANs use cables.
WLANs cover a larger geographical area than LANs.
WLANs use wired connections, while LANs use wireless.
WLANs are more secure than LANs.
77
Which topology allows every device to directly communicate with every other device in the network?
Mesh
Ring
Star
Bus
78
Which of the following medium can be used for establishing a point-to-point network connection?
Wired cable or wireless satellite
Optical fiber cables exclusively
Bluetooth connections only
Near Field Communication (NFC) technology
79
Which technology is typically used in a WLAN?
Wi-Fi
NFC
Bluetooth
Ethernet
80
What is point-to-point topology?
Two nodes, one medium.
Devices in a circle
Wireless network.
Many devices, one hub.
81
What type of network helps to control and restrict access between LANs?
PAN
MAN
VLAN
WLAN
82
Which network topology is recognized as the most widely used in both business and residential settings?
Star
Bus
Ring
Mesh
83
The term 'NIC' is short for what?
Network Interface Card
Network Interface Controller
Network Internet Connection
Network Access Control
84
What is the role of a switch in a network?
To prevent data collisions on a network.
To serve as a controller allowing network devices to communicate.
To convert data into packets for transmission.
To regenerate signals and extend their transmission length.
85
What does WAN stand for in terms of Networking?
Wide Area Network
Wireless Area Network
Wide Access Network
Wavelength Area Network
86
Which of the following is a connectionless protocol?
SMTP
TCP
FTP
UDP
87
Which devices can serve as a hub in a star topology?
Modem
Firewall
Hub, switch, or router
Wireless access point
88
During the midterm, there is no true/false answer.
Question: Does a switch creates network?
True
False
89
What does (WAP) allow?
It allows Wireless Wi-Fi devices to connect to a wired network.
It allows Wired devices to connect to a wireless network.
It acts as a bridge between different network segments.
It allows a device to function as a modem and a router.
90
What constitutes a network?
The interconnection of a set of devices capable of communication.
A single computer connected to the internet.
A software application designed for communication.
A collection of protocols and standards.
91
Which layer of the TCP/IP model interacts directly with application program
Application layer
Network layer
Transport layer
Physical layer
