Computer Networks: Client-Server Architecture

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What is the primary purpose of HTTPS?

To reduce the size of HTML pages
To speed up internet browsing
To authenticate users on a network
To encrypt data during transmission (correct)

What is the name of the protocol used to send email?

HTTP
SMTP (correct)
TLS
HTTPS

What type of encryption is used to secure data in HTTPS?

Email and HTTP
SSL and TLS (correct)
HTTP and SMTP
SMTP and SSL

What is the role of a mail server in email communication?

To communicate with another mail server to transport messages (B) Signup and view all the answers

How do email clients communicate with each other?

Through a mail server (B) Signup and view all the answers

What is the purpose of the store-and-forward method in email?

To store email messages in databases on mail servers (A) Signup and view all the answers

What is the primary difference between HTTP and HTTPS?

HTTPS uses encryption, while HTTP does not (C) Signup and view all the answers

What is the role of an email client in email communication?

To communicate with a mail server to send and receive email (C) Signup and view all the answers

What is the primary function of an email client in a client-server network?

To issue requests to the email server for unread mail (C) Signup and view all the answers

What is the term for data transfer from a client to a server?

Upload (D) Signup and view all the answers

In a peer-to-peer network, what is the function of a peer device?

To function as both a server and a client (D) Signup and view all the answers

What is a characteristic of peer-to-peer networks?

Resources are shared without a dedicated server (C) Signup and view all the answers

In a peer-to-peer exchange, how are the roles of client and server determined?

On a per-request basis (C) Signup and view all the answers

What is the relationship between devices in a peer-to-peer network?

Both devices are equal in the communication process (C) Signup and view all the answers

What is the difference between a client-server network and a peer-to-peer network?

A client-server network has a dedicated server, while a peer-to-peer network does not (C) Signup and view all the answers

What is a characteristic of application layer protocols?

They describe the format of requests and responses between clients and servers (B) Signup and view all the answers

What is the primary purpose of the POP server?

To passively listen on TCP port 110 for client connection requests (A) Signup and view all the answers

What happens to email messages on the server when using POP?

They are deleted immediately after download (B) Signup and view all the answers

What is the primary difference between POP and IMAP?

The way email messages are stored on the server (A) Signup and view all the answers

Why is POP not recommended for small businesses?

Because it does not store messages, making it difficult to have a centralized backup solution (B) Signup and view all the answers

What happens when a user decides to delete a message in IMAP?

The server synchronizes the action and deletes the message from the server (C) Signup and view all the answers

What is the purpose of the greeting sent by the POP server?

To signal the start of the POP session (A) Signup and view all the answers

What is the main advantage of using IMAP over POP?

IMAP allows for a centralized location where email messages are kept (D) Signup and view all the answers

What is the sequence of events when a client wants to use the POP service?

The client sends a request, then the POP server establishes a TCP connection, and then sends a greeting (C) Signup and view all the answers

What happens when a DHCP-configured device boots up or connects to a network?

It broadcasts a DHCP discover message to identify available servers. (B) Signup and view all the answers

What information does a DHCP offer message contain?

The IPv4 address, subnet mask, DNS server, and default gateway. (A) Signup and view all the answers

What happens if a client receives multiple DHCP offers?

The client chooses one offer and sends a DHCP request message. (D) Signup and view all the answers

What is the purpose of a DHCP negative acknowledgment message?

To indicate that the offered lease is no longer valid. (C) Signup and view all the answers

What ensures that IP addresses are unique in a network?

The DHCP server ensures IP address uniqueness. (C) Signup and view all the answers

What is the similar set of messages in DHCPv6?

SOLICIT, ADVERTISE, INFORMATION REQUEST, and REPLY. (D) Signup and view all the answers

What is the purpose of a DHCP request message?

To choose a lease offer from a specific server. (D) Signup and view all the answers

What happens when a client sends a DHCP request message?

The server sends a DHCP acknowledgment message to finalize the lease. (A) Signup and view all the answers

What is the primary purpose of the File Transfer Protocol?

To allow for data transfers between a client and a server (C) Signup and view all the answers

On which TCP port does the FTP client establish the control connection?

TCP port 21 (C) Signup and view all the answers

In what direction can data transfer occur using FTP?

In either direction, depending on the command (C) Signup and view all the answers

What is the purpose of the Server Message Block protocol?

To manage network resources, such as printers and serial ports (C) Signup and view all the answers

What type of connection is established every time there is data to be transferred using FTP?

Data connection (B) Signup and view all the answers

Which of the following is NOT a characteristic of the FTP protocol?

Uses TCP port 80 for data transfer (C) Signup and view all the answers

What is the primary function of an FTP client?

To push and pull data from an FTP server (A) Signup and view all the answers

Which protocol is used for request-response file sharing?

Server Message Block (SMB) (B) Signup and view all the answers