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About today's quiz

Networking — Intermediate

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  • •After each answer, read the explanation. Even correct answers often include useful context you might not know.
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IntermediateTechnology
Today's questions

Today's quiz questions

These are the questions that make up today's quiz. Test your knowledge, see how much you know, and learn from the explanation behind every answer.

  1. 1.How many layers does the OSI model have?

    • •7
    • •5
    • •4
    • •6

  2. 2.What is the loopback (localhost) IP address?

    • •10.0.0.1
    • •127.0.0.1
    • •0.0.0.0
    • •192.168.0.1

  3. 3.Which protocol translates domain names to IP addresses?

    • •DNS
    • •NAT
    • •DHCP
    • •ARP

  4. 4.What is the difference between symmetric and asymmetric encryption?

    • •Symmetric uses two keys; asymmetric uses one
    • •Symmetric is faster but less secure than asymmetric in all cases
    • •Symmetric uses the same key for encryption/decryption; asymmetric uses a public-private key pair
    • •Symmetric encryption is used for data; asymmetric for voice

  5. 5.What is WPA3?

    • •A VPN protocol for wireless networks
    • •The third generation of Wi-Fi hardware standards
    • •A wide-area network protocol for municipal Wi-Fi
    • •The latest Wi-Fi security protocol (2018), providing stronger encryption and protection against offline dictionary attacks

  6. 6.Which address uniquely identifies a network card?

    • •MAC address
    • •SMTP address
    • •URL address
    • •IP address

  7. 7.What does Wi-Fi mean?

    • •Wireless Fiber
    • •Wireless Fidelity
    • •It is not an acronym, it is a trademark
    • •Wide Frequency

  8. 8.What is DHCP?

    • •A protocol that assigns IP addresses automatically
    • •A routing protocol used by internet backbone routers
    • •A security protocol that encrypts network traffic
    • •A protocol for transferring files between computers

  9. 9.What is a man-in-the-middle (MITM) attack?

    • •An attack that physically accesses a server room
    • •An attack that overwhelms a server with traffic
    • •An attack that cracks passwords through brute force
    • •An attack where the attacker secretly intercepts and potentially alters communication between two parties

  10. 10.What is ARP (Address Resolution Protocol)?

    • •A protocol for assigning IP addresses automatically
    • •A security protocol that detects network intrusions
    • •A routing protocol for finding the shortest path between networks
    • •A protocol that maps IP addresses to MAC addresses on a local network