The Transport layer ensures a reliable data transfer from a source to a destination.

The Transport layer is responsible for assigning IP addresses to devices.

The Transport layer encrypts all data before transmission.

The Transport layer manages the physical connection between devices.

The Internet layer handles addressing, fragmenting, and routing data packets from source to destination.

The Internet layer is responsible for encrypting data for secure transmission.

The Internet layer manages user authentication and access control.

The Internet layer provides end-to-end error correction and flow control.

The Network layer defines the data link and physical aspects of data traveling from a source to a destination.

The Network layer is responsible for encrypting and decrypting data for secure communication.

The Network layer manages user authentication and access control.

The Network layer handles application-specific protocols such as HTTP and FTP.

The Application layer defines how applications interact with a network

It manages the physical transmission of data over the network

It is responsible for error detection and correction

It handles routing of data between devices

The Presentation layer manages formatting and encrypting data

The Presentation layer routes data between devices

The Presentation layer establishes end-to-end connections

The Presentation layer handles error detection and correction

The Session layer establishes and terminates communication between a source and a destination

The Session layer is responsible for routing packets across networks

The Session layer encrypts and decrypts data for secure transmission

The Session layer handles error detection and correction at the physical level

The Transport layer breaks data into segments and is responsible for checking to see if any errors occur in a data transmission

The Transport layer is responsible for routing packets between devices on different networks

The Transport layer encrypts data for secure transmission across the network

The Transport layer manages the physical connection between devices

The Network layer breaks down data into segments, then packets. The packets are tagged with the source and destination IP address and routed to the destination

The Network layer encrypts data for secure transmission over the network.

The Network layer is responsible for establishing and terminating connections between two devices.

The Network layer converts data into electrical signals for transmission over physical media.

The Data Link layer frames data and performs MAC addressing

It routes packets between networks

It encrypts data for secure transmission

It manages end-to-end communication sessions

The Physical layer establishes how data will be physically transferred from a source to a destination

The Physical layer manages logical addressing and routing of data

The Physical layer is responsible for error detection and correction in data frames

The Physical layer handles encryption and decryption of data

A frame contains a header, a payload, and a trailer.

A frame contains only a header and a footer.

A frame contains just a payload and a checksum.

A frame contains only a header and a payload.

Frames operate on layer 2 of the OSI model, also known as the Data Link layer.

Frames operate on layer 3 of the OSI model, also known as the Network layer.

Frames operate on layer 4 of the OSI model, also known as the Transport layer.

Frames operate on layer 1 of the OSI model, also known as the Physical layer.

A packet contains a header and a payload.

A packet contains only a header.

A packet contains only a payload.

A packet contains only a footer.

Packets operate on layer 3 of the OSI model, also known as the Network layer.

Packets operate on layer 2 of the OSI model, also known as the Data Link layer.

Packets operate on layer 4 of the OSI model, also known as the Transport layer.

Packets operate on layer 7 of the OSI model, also known as the Application layer.

Frames are de-encapsulated into packets.

Packets are de-encapsulated into frames.

Frames are encapsulated into packets.

Packets are encapsulated into frames.

A MAC address is a unique physical address stamped onto a device to identify the device

A MAC address is a type of internet protocol used for routing data

A MAC address is a software program that manages network connections

A MAC address is a password used to access wireless networks

IP addresses can change based on a device’s location

IP addresses are always assigned by hardware manufacturers

IP addresses are permanent and never change

IP addresses are only used for local communication

A. MAC address

B. IPv4 address

C. IPv6 address

D. Subnet mask

A. MAC address

B. IPv4 address

C. IPv6 address

D. Subnet mask

A. MAC address

B. IP address

C. Email address

D. Physical address

Bandwidth is the maximum speed data can transfer, given that no other factors impede the connection.

Bandwidth is the amount of data lost during transmission.

Bandwidth is the physical length of a network cable.

Bandwidth is the type of encryption used in a network.

speedtest.net

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Throughput is the maximum speed at which data can transfer at the current time.

Throughput is the amount of memory available in a system.

Throughput is the number of users connected to a network.

Throughput is the minimum speed required for a connection.

iPerf

Wireshark

Ping

Traceroute

Latency is the time it takes for a packet to go from a source to a destination.

Latency is the amount of data that can be transmitted in a fixed amount of time.

Latency is the process of encrypting data before transmission.

Latency is the method of compressing files to save space.

A ping command

A mkdir command

A ls command

A cp command

Delay is the time it takes for a packet to reach a destination and have any processing done on the packet.

Delay is the process of encrypting data before transmission.

Delay is the amount of data that can be transmitted in a fixed amount of time.

Delay is the method of compressing data to save bandwidth.

Task Manager

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LANs connect devices in a small area, such as a home or office.

LANs are used to connect satellites in space.

LANs are networks that span entire countries.

LANs are only used for wireless communication.

MANs connect devices in a large area, such as a city or town.

MANs are used to connect devices within a single building only.

MANs are networks that connect devices globally.

MANs are used exclusively for personal home networks.

WANs connect networks over a large area, such as a country or globally.

WANs are used only for connecting devices within a single room.

WANs are a type of wireless personal device.

WANs are exclusively for home use.

PANs connect devices that are close to each other, such as a smartphone and a smartwatch.

PANs are used to connect computers over long distances, such as between cities.

PANs are networks that connect devices only through satellites.

PANs are used exclusively for connecting large organizations' data centers.

CANs connect devices across multiple buildings in the same location.

CANs are used to connect devices within a single room only.

CANs are a type of wireless personal area network.

CANs are used exclusively for connecting mobile devices.

A bus topology is a type of network topology in which all devices are connected to a single cable, called the backbone, and data travels from one end of the network to the other.

A bus topology is a type of network topology in which each device is connected to every other device directly.

A bus topology is a type of network topology where devices are connected in a circular fashion.

A bus topology is a type of network topology where each device is connected to a central hub.

A ring topology is a type of network topology in which devices are connected in a circular loop, and data travels in one direction within that loop.

A ring topology is a type of network topology where all devices are connected to a central hub.

A ring topology is a type of network topology in which devices are connected in a straight line.

A ring topology is a type of network topology where each device is connected wirelessly to every other device.

A star topology is a type of network topology in which all devices are connected to a central hub or switch, which forwards data to the destination.

A star topology is a type of network topology where each device is connected to every other device directly.

A star topology is a type of network topology in which devices are connected in a closed loop or ring.

A star topology is a type of network topology where all devices are connected in a single line.

A mesh topology is a type of network topology in which each device is connected to every other device, providing a high degree of redundancy and fault tolerance.

A mesh topology is a type of network topology where all devices are connected in a single line, one after another.

A mesh topology is a type of network topology where each device is connected only to a central hub.

A mesh topology is a type of network topology where devices are connected in a circular fashion.

Public clouds are hosted by cloud providers on the internet

Public clouds are hosted on private company servers only

Public clouds are hosted on user local machines

Public clouds are hosted without any internet connectivity

Private clouds are hosted on a private network using on-premises servers

Private clouds are hosted on public cloud infrastructure shared with other organizations

Private clouds are hosted exclusively on third-party data centers with no on-premises control

Private clouds are hosted using only mobile devices and wireless networks

Hybrid clouds have a cloud hosted by cloud providers on the internet and a cloud hosted on a private network

Hybrid clouds are only hosted on private networks

Hybrid clouds are hosted exclusively by third-party vendors

Hybrid clouds are hosted on a single public cloud platform

The company is responsible for securing data

The cloud provider is solely responsible for securing data

Neither is responsible for securing data

Only third-party vendors are responsible for securing data

device

server

browser

network

desktops

printers

keyboards

monitors

cloud

desktop

local network

mainframe

Employees should avoid using public Wi-Fi and use VPNs.

Employees should always share passwords over email.

Employees should disable antivirus software.

Employees should use personal devices for work without restrictions.

Employees should set their device’s Wi-Fi to connect automatically to known wireless networks, such as networks at home or the employee’s workplace.

Employees should only connect to public Wi-Fi networks for convenience.

Employees should disable Wi-Fi and use only mobile data at all times.

Employees should share their Wi-Fi password with colleagues to ensure easy access.

Hybrid work is a work situation in which work is partly remote and partly done in a company office setting.

Hybrid work is a type of job that only allows employees to work from home.

Hybrid work is a system where employees work only during weekends.

Hybrid work is a situation where employees never visit the office and work from different countries.

TCP sends acknowledgments to ensure data is received, while UDP does not send acknowledgments.

UDP guarantees delivery of data, while TCP does not.

TCP is used only for video streaming, while UDP is used only for emails.

UDP establishes a connection before sending data, while TCP does not.

Using UDP results in less network bandwidth being used.

UDP guarantees delivery of every packet, while TCP does not.

UDP automatically encrypts all data, while TCP does not.

UDP is slower than TCP for all types of data transfer.

To send acknowledgments for data, TCP creates a connection between the source and destination. UDP does not need a connection between the source and destination because no acknowledgments are sent.

TCP is faster than UDP because it does not require a connection.

UDP uses more resources than TCP because it maintains a connection.

TCP and UDP both require a connection, but only TCP sends acknowledgments.

HTTPS encrypts data sent over the internet, while HTTP does not encrypt data.

HTTP is faster than HTTPS because it uses more encryption.

HTTPS and HTTP are exactly the same in terms of security.

HTTP encrypts data, while HTTPS does not.

One can view the website address in the address bar on a web browser to see if the website is using HTTP or HTTPS.

One can check the website's background color to see if it is using HTTP or HTTPS.

One can right-click on the page and select 'View Source' to see if it is using HTTP or HTTPS.

One can look for a padlock icon in the browser's bookmarks to see if it is using HTTP or HTTPS.

assign IP addresses

encrypt data packets

monitor network traffic

block unauthorized access

halfway, 85%

one quarter, 50%

immediately, 100%

three quarters, 90%

IP address reservation

IP address translation

IP address forwarding

IP address filtering

hostnames, hostnames

hostnames, domains

domains, hostnames

protocols, hostnames

IP addresses, hostnames

usernames, passwords

MAC addresses, subnet masks

URLs, cookies

troubleshoot network connection issues

encrypt data for secure transmission

assign IP addresses to devices

manage user authentication

ping

traceroute

netstat

ifconfig

synchronize exact time

share files

encrypt data

manage user accounts

inaccurate, fail

accurate, succeed

delayed, synchronize

secure, complete

Application

Presentation

Data Link

Physical

Data Link Layer

Network Layer

Transport Layer

Application Layer