Http Ftp — Test 1

Correct Answer: A. A. True
Explanation: Persistent connections are kept active after completing transaction so that multiple objects can be sent over the same TCP connection.

Correct Answer: A. A. Application layer
Explanation: HTTP is an Application layer protocol used to define how messages are formatted and transmitted through the World Wide Web.

Correct Answer: B. B. Transmission control protocol
Explanation: HTTP clients perform requests using a TCP connection, because the TCP connection provides a more reliable service. UDP is not a reliable protocol, border gateway protocol is used on top of TCP, while domain host control protocol is a network layer protocol.

Correct Answer: B. B. False
Explanation: In Passive mode of FTP, the client initiates both data and control connections, while in Active mode, the client initiates the control connection and then the server initiates the data connection.

Correct Answer: A. A. Uniform resource identifier
Explanation: The Uniform Resource Identifier is a name and locator for the resource to be located by the HTTP. The URLs and URNs are derived through the identifier.

Correct Answer: A. A. Multiple HTTP requests are sent on a single TCP connection without waiting for the corresponding responses
Explanation: HTTP pipelining helps the client make multiple requests without having to waiting for each response, thus saving a lot of time and bandwidth for the client.

Correct Answer: B. B. 21
Explanation: Port 20 is used for FTP data. Port 22 is used for SSH remote login. Port 23 is used for TELNET.

Correct Answer: A. A. Transmission control protocol
Explanation: The clients use the Transmission Control Protocol for FTP as it’s more reliable than UDP, DCCP, and SCTP, and reliability of file transfer is required to be as high as possible for FTP.

Correct Answer: C. C. Client server architecture
Explanation: The FTP connection includes a Server and a Client which wish to share files. The server can have multiple clients at the same time while the client communicates with only one server at a time.

Correct Answer: D. D. Message mode
Explanation: In Stream mode, the data is transferred in a continuous stream. In Block mode, data is transferred after being divided into smaller blocks. In Compressed mode, data is transferred after being compressed using some compression algorithm.