CompTIA A+ Certification 220-1001: The Total Course - TCP, UDP, and ICMP

What is the primary purpose of a protocol in networking?

• To provide a unique identity to each device

• To establish a set of rules for communication

• To encrypt data for security

• To increase the speed of data transmission

Which protocol is known for establishing a connection before data transmission?

• IP

• UDP

• ICMP

• TCP

How does UDP differ from TCP in terms of connection?

• UDP encrypts data by default

• UDP is slower than TCP

• UDP is connectionless and does not require a handshake

• UDP requires a handshake before communication

What is a unique characteristic of ICMP compared to TCP and UDP?

• ICMP can handle thousands of packets

• ICMP is used for establishing connections

• ICMP is always a single packet

• ICMP is used for streaming media

What does the term 'Protocol Data Unit' (PDU) refer to?

• A method of increasing data speed

• A type of encryption method

• A specific layer of data transmission

• A chunk of data at a specific layer

Which PDU is associated with the Ethernet layer?

• TCP Segment

• UDP Datagram

• IP Packet

• Ethernet Frame

What is the main focus when discussing switches in networking?

• Data encryption

• Connection speed

• IP addresses

• MAC addresses