ACN- CS-1 April 16 2023

What is the system of interconnected hypertext documents and resources accessed via the internet called?

• A. The internet suite

• B. The World Wide Web

• C. The domain name system

• D. The file transfer protocol

Answer explanation

The system of interconnected hypertext documents and resources accessed via the internet is called the World Wide Web (WWW). The WWW is a network of websites, webpages, and other online resources that are connected to each other through hyperlinks. It is the primary way that people access information on the internet.

Match the following

• Data must be received by the intended device or user and only by that device or user

• Accuracy

• Variation in time delay between packets arriving at their destination

• Delivery

• Guarantee that data is transmitted correctly and completely

• Jitter

• Ability to transfer data in a timely manner

• Timeliness

Which of the following protocols is used to send email messages over the Internet?

• A) FTP

• B) HTTP

• C) SMTP

• D) DNS

Answer explanation

The Simple Mail Transfer Protocol (SMTP) is the protocol used to send email messages over the Internet. SMTP is a text-based protocol that is used to send and receive email messages between mail servers. It is responsible for routing email messages from the sender to the recipient's mail server.

Which of the following is NOT a design goal of the Internet?

• A. Robustness

• B. Diversity

• C. Complexity

• D. Accountability

Which layer of the OSI model is responsible for translating data between different formats and representations?

• A. Physical layer

• B. Presentation layer

• C. Transport layer

• D. Application layer

Answer explanation

The Session Layer (Layer 5) of the OSI model is responsible for translating data between different formats and representations. This layer is responsible for establishing, maintaining, and terminating communication sessions between two applications. It also provides services such as authentication, encryption, and data compression. The Session Layer is responsible for translating data between different formats and representations, such as text, audio, and video.

Which design goal of the Internet refers to the ability to accommodate a variety of networks?

• A. Robustness

• B. Diversity

• C. Interoperability

• D. Scalability

Which layer of the OSI model is responsible for establishing and maintaining links between adjacent nodes on a network?

• A. Physical layer a link laye

• B. Data link layer

• C. Network layer

• D. Transport layer

Which layer of the OSI model is responsible for routing data between different networks?

• A. Physical layer

• B. Data link layer

• C. Network layer

• D. Transport layer

Reorder the following - TCP/IP model consists of the following layers:

• Application Layer

• Transport Layer

• Network Access Layer

• Internet Layer