Networking Devices and Protocols Quiz

Which of the following best describes how a hub forwards traffic?

• Directs traffic to the correct port based on MAC address

• Broadcasts traffic to all ports except the source

• Sends traffic only to the default gateway

• Encrypts traffic before forwarding

A network administrator wants to reduce unnecessary network traffic by forwarding frames only to the intended destination. Which device should they use?

• Hub

• Switch

• Bridge

• Repeater

Which two statements are true about managed switches? (Select two)

• They cannot be configured

• They support VLANs and QoS

• They allow remote management

• They always require stacking

A rack-mounted switch differs from a desktop switch because:

• It requires fiber connections only

• It is designed to fit into networking racks

• It has built-in redundancy

• It only works with hubs

Which switch feature allows multiple physical links to operate as a single logical connection for redundancy and increased bandwidth?

• Port mirroring

• Link aggregation (NIC teaming)

• Power over Ethernet (PoE)

• Spanning Tree Protocol (STP)

What is the maximum standard Ethernet MTU size?

• 900 bytes

• 1500 bytes

• 9216 bytes

• 2048 bytes

What problem does Spanning Tree Protocol (STP) solve?

• IP address conflicts

• Broadcast storms and loops

• VLAN mismatches

• ARP spoofing

Which of the following technologies allows both data and electrical power to be transmitted over the same Ethernet cable?

• PoE

• MTU

• ARP

• STP

Which protocol maps IP addresses to MAC addresses within a local network?

• ICMP

• ARP

• DHCP

• DNS

A broadcast message in IPv4 is sent to which address?

• 0.0.0.0

• 127.0.0.1

• 255.255.255.255

• The subnet gateway