St.JOSEPHS CISCO IDEATHON PREPARATION TEST 5 @ 19/6/24

What is the first action in the boot sequence when a switch is powered on?

• • load a power-on self-test program

• • load the default Cisco IOS software

• • load boot loader software

• • low-level CPU initialization

If one end of an Ethernet connection is configured for full duplex and the other end of the connection is configured for half duplex, where would late collisions be observed?

• • on the half-duplex end of the connection

• • on both ends of the connection

• • on the full-duplex end of the connection

• • only on serial interfaces

Which protocol adds security to remote connections?

• • SSH

• • POP

• • FTP

• • HTTP

What is the minimum Ethernet frame size that will not be discarded by the receiver as a runt frame?

• • 64 bytes

• • 512 bytes

• • 1024 bytes

• • 1500 bytes

Which impact does adding a Layer 2 switch have on a network?

• • an increase in the number of dropped frames

• • an increase in the size of the broadcast domain

• • an increase in the number of network collisions

• • an increase in the size of the collision domain

What is the significant difference between a hub and a Layer 2 LAN switch?

• • A hub extends a collision domain, and a switch divides collision domains.

• • A hub divides collision domains, and a switch divides broadcast domains.

• • A hub forwards frames, and a switch forwards only packets.

• • Each port of a hub is a collision domain, and each port of a switch is a broadcast domain.

Which statement is correct about Ethernet switch frame forwarding decisions?

• • Cut-through frame forwarding ensures that invalid frames are always dropped.

• • Only frames with a broadcast destination address are forwarded out all active switch ports.

• • Unicast frames are always forwarded regardless of the destination MAC address.

• • Frame forwarding decisions are based on MAC address and port mappings in the CAM table.

How do switch buffers affect network performance?

• • They provide error checking on the data received.

• • They store frames received, thus preventing premature frame discarding when network congestion occurs.

• • They provide extra memory for a particular port if autonegotiation of speed or duplex fails.

• • They hold data temporarily when a collision occurs until normal data transmission resumes.

What information is added to the switch table from incoming frames?

• • source MAC address and incoming port number

• • destination MAC address and incoming port number

• • source IP address and incoming port number

• • destination IP address and incoming port number

Which switching method ensures that the incoming frame is error-free before forwarding?

• • cut-through

• • FCS

• • store-and-forward

• • fragment free