connect and protect networks and network security coursera weekly challenge 2 answers

Test your knowledge: Recognize different network protocols

1. Fill in the blank: Network protocols are rules used by two or more devices on a network to describe the _____ and structure of data.

  • access level
  • optimum speed
  • order of delivery
  • maximum size

2. Which network protocol provides a secure method of communication between clients and web servers?

  • TCP
  • ARP
  • DNS

3. To keep information safe from malicious actors, what security protocol can be used?

  • Secure sockets layer and transport layer security (SSL/TLS)
  • Address resolution protocol (ARP)
  • Domain name system (DNS)
  • Transmission control protocol (TCP)

4. IEEE 802.11, also known as Wi-Fi, is a set of standards that define communication for wireless LANs.

  • True
  • False

Test your knowledge: System identification

5. What monitors and filters traffic coming in and out of a network?

  • Domain name system (DNS)
  • Firewall
  • Forward proxy server
  • Uncontrolled zone

6. Stateless is a class of firewall that keeps track of information passing through it and proactively filters out threats.

  • True
  • False

7. Fill in the blank: Encapsulation is a process performed by a _____ that protects information by wrapping sensitive data in other data packets.

  • firewall
  • VPN service
  • proxy server
  • security zone

8. Which security zone is used to ensure highly confidential information and is only accessible to employees with certain privileges?

  • Management zone
  • Uncontrolled zone
  • Restricted zone
  • Demilitarized zone (DMZ)

Shuffle Q/A 1

9. Fill in the blank: A security analyst uses a _____ to regulate and restrict access to an internal server from the internet. This tool works by accepting traffic from external parties, approving it, and forwarding it to internal servers.

  • reverse proxy server
  • port filter
  • controlled zone
  • forward proxy server

Weekly challenge 2

10. What network protocol translates the domain name of a website’s server into an IP address?

  • File transfer protocol (FTP)
  • Domain name system (DNS)
  • Transmission control protocol (TCP)
  • Hypertext transfer protocol secure (HTTPS)

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