Network Protocols Quiz! CompTIA Exam

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Network Protocols Quiz! CompTIA Exam - Quiz

This CompTIA Network+ certification test will help you pass by familiarizing you with the material and ensuring that you know the CompTIA+ Networking test structure. It's a basic quiz based on protocols identified in the CompTIA Network+ certification objectives for standard networking protocols. Let's try it out.


Questions and Answers
  • 1. 

    Which protocol is used to automatically provide IP addresses to network computers?

    • A.

      DHCP

    • B.

      DNS

    • C.

      ARP

    • D.

      IGMP

    Correct Answer
    A. DHCP
    Explanation
    DHCP is the correct answer because it stands for Dynamic Host Configuration Protocol. It is used to automatically assign IP addresses to network computers. DHCP allows devices to join a network and obtain necessary network configuration information, such as IP address, subnet mask, default gateway, and DNS server addresses, without manual configuration. This protocol simplifies network administration and ensures efficient allocation of IP addresses.

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  • 2. 

    Which protocol is used to upload email messages to an email server?

    • A.

      DNS

    • B.

      HTTP

    • C.

      SMTP

    • D.

      PAT

    Correct Answer
    C. SMTP
    Explanation
    SMTP (Simple Mail Transfer Protocol) is the correct answer because it is the protocol used to upload email messages to an email server. SMTP is responsible for the transmission and delivery of email messages between email servers. It allows the sender's email client to communicate with the recipient's email server and transfer the email message for delivery. DNS (Domain Name System) is used for domain name resolution, HTTP (Hypertext Transfer Protocol) is used for web communication, and PAT (Port Address Translation) is a network address translation technique used in computer networking.

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  • 3. 

    Which protocol is used to resolve domain names to IP addresses?

    • A.

      TCP

    • B.

      DNS

    • C.

      DHCP

    • D.

      ARP

    Correct Answer
    B. DNS
    Explanation
    DNS (Domain Name System) is the protocol used to resolve domain names to IP addresses. When a user enters a domain name in their web browser, DNS translates that domain name into the corresponding IP address of the server hosting the website. This allows the user's device to establish a connection with the correct server and retrieve the requested web page. DNS plays a crucial role in enabling the functioning of the internet by providing a way to identify and locate resources using human-readable domain names instead of complex IP addresses.

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  • 4. 

    Which protocol is used to resolve IP to MAC addresses?

    • A.

      DNS

    • B.

      DHCP

    • C.

      ARP

    • D.

      WEP

    Correct Answer
    C. ARP
    Explanation
    ARP (Address Resolution Protocol) is the correct answer. ARP is used to resolve IP (Internet Protocol) addresses to MAC (Media Access Control) addresses. It is a protocol that allows devices on a network to discover each other's MAC addresses. When a device wants to send data to another device on the same network, it needs to know the MAC address of the destination device. ARP helps in mapping the IP address of the destination device to its corresponding MAC address, enabling successful communication between devices on a network.

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  • 5. 

    Which protocol is used to provide secure connections across the Internet?

    • A.

      ARP

    • B.

      HTTPS

    • C.

      NTP

    • D.

      POP3

    Correct Answer
    B. HTTPS
    Explanation
    HTTPS (Hypertext Transfer Protocol Secure) is the correct answer because it is the protocol used to provide secure connections across the Internet. It combines the standard HTTP protocol with SSL/TLS encryption to ensure that data transmitted between a web browser and a website is encrypted and secure. This is particularly important for sensitive information such as passwords, credit card details, and personal data, as it prevents unauthorized access and protects against data breaches.

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  • 6. 

    What does the acronym SSL represent?

    • A.

      System Service Layer

    • B.

      Secure Sockets Layer

    • C.

      System Synchronize Link

    • D.

      Secure System Link

    Correct Answer
    B. Secure Sockets Layer
    Explanation
    SSL stands for Secure Sockets Layer. It is a cryptographic protocol that provides secure communication over a computer network. It ensures that the data transmitted between a web server and a browser remains encrypted and cannot be intercepted by unauthorized individuals. SSL is commonly used to secure online transactions, such as credit card payments, and to protect sensitive information, such as login credentials.

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  • 7. 

    Which protocol is most similar to SSL?

    • A.

      NTP

    • B.

      FTP

    • C.

      POP3

    • D.

      TLS

    Correct Answer
    D. TLS
    Explanation
    TLS (Transport Layer Security) is the correct answer because it is the successor to SSL (Secure Sockets Layer) and is designed to provide secure communication over a computer network. TLS and SSL are both cryptographic protocols that provide encryption and authentication for data transmission. They use similar methods and algorithms to establish a secure connection between a client and a server. Therefore, TLS is the most similar protocol to SSL.

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  • 8. 

    Which protocol is commonly used to retrieve email from a mail server?

    • A.

      FTP

    • B.

      IMAP

    • C.

      HTML

    • D.

      TELNET

    Correct Answer
    B. IMAP
    Explanation
    IMAP (Internet Message Access Protocol) is commonly used to retrieve email from a mail server. It allows users to access their emails from multiple devices and keeps the emails stored on the server, rather than downloading them to a specific device. This enables users to manage their emails more efficiently and access them from anywhere, while also allowing for synchronization between devices. FTP (File Transfer Protocol) is used for transferring files, HTML (Hypertext Markup Language) is used for creating web pages, and TELNET is used for remote access to computers.

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  • 9. 

    Which is a common routing protocol used for local and wide area networks?

    • A.

      RIP

    • B.

      ARP

    • C.

      UDP

    • D.

      TCP

    Correct Answer
    A. RIP
    Explanation
    RIP (Routing Information Protocol) is a common routing protocol used for local and wide area networks. It is a dynamic routing protocol that allows routers to exchange information about network distances and choose the best path for forwarding packets. RIP uses a distance-vector algorithm to determine the best route, considering factors such as hop count. It is widely supported and easy to configure, making it a popular choice for small to medium-sized networks. ARP (Address Resolution Protocol) is responsible for mapping IP addresses to MAC addresses, while UDP (User Datagram Protocol) and TCP (Transmission Control Protocol) are transport layer protocols used for data transmission.

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  • 10. 

    Which is a link-layer protocol?

    • A.

      ARP

    • B.

      TCP

    • C.

      UDP

    • D.

      HTTP

    Correct Answer
    A. ARP
    Explanation
    ARP (Address Resolution Protocol) is a link-layer protocol used to resolve IP addresses to MAC addresses in a local network. It is responsible for mapping the IP address of a device to its corresponding MAC address, allowing communication between devices on the same network. TCP, UDP, and HTTP are transport layer protocols, not link-layer protocols. TCP (Transmission Control Protocol) provides reliable, connection-oriented communication, UDP (User Datagram Protocol) provides unreliable, connectionless communication, and HTTP (Hypertext Transfer Protocol) is a protocol used for transmitting hypertext over the internet.

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