Which protocol is responsible for ensuring reliable communication between two devices by acknowledging receipt of packets and requesting retransmission of lost packets?

• A. TCP
• B. IPv4
• C. IPv6
• D. DNS

Which device is used to connect multiple devices on a LAN to a wide-area network such as the internet?

• A) Router
• B) Switch
• C) Hub
• D) Gateway

What is the main purpose of rlogin in the TCP/IP protocol suite?

• a) To facilitate file transfers
• b) To provide email services
• c) To remotely access network devices
• d) To securely connect to a remote host

Which device is used to connect multiple devices on a LAN, but does not forward data packets between them?

• A) Router
• B) Switch
• C) Hub
• D) Gateway

Which protocol is typically used to access files over a network and is commonly used in Windows environments?

• A) NFS
• B) SMB
• C) SAS
• D) FCoE

Which type of network is typically used to connect computers over a wide geographic area, such as across cities or even countries?

• A) LAN
• B) WAN
• C) WLAN
• D) NFC

Why is it important to ensure the confidentiality, integrity, and availability of information?

• To protect sensitive data from unauthorized access or tampering
• To prevent system failures and ensure uninterrupted access to information
• To comply with legal and regulatory requirements
• All of the above

Which protocol is responsible for providing a unique address for each device connected to the internet?

• A. TCP
• B. IPv4
• C. IPv6
• D. DNS

Which protocol is used for remote login to a server?

• A. rlogin
• B. SMTP
• C. Telnet
• D. FTP

What is the main difference between Transmission Control Protocol (TCP) and Internet Protocol (IP) in the TCP/IP protocol suite?

• a) TCP handles error checking and correction, while IP handles routing of packets.
• b) TCP handles routing of packets, while IP handles error checking and correction.
• c) TCP and IP handle the same function in the protocol suite.
• d) TCP handles data transfer, while IP handles network communication.