Pop Quiz

Which message delivery option is used when all devices need to receive the same message simultaneously?

• Unicast

• Multicast

• Broadcast

• Anycast

If the default gateway is configured incorrectly on the host, what is the impact on communications?

• The host is unable to communicate on the local network.

• There is no impact on communications.

• The host can communicate with other hosts on remote networks, but is unable to communicate with hosts on the local network.

• The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks.

Which of the following operates at the application layer protocols of the TCP/IP protocol suite?

• DHCP

• ARP

• PPP

• NAT

PC1 and PC3 are on different networks separated by a router, RT1. PC1 issues an ARP request because it needs to send a packet to PC3. In this scenario, what will happen next?

• RT1 will forward the ARP request to PC3.

• RT1 will drop the ARP request.

• RT1 will send an ARP reply with its own MAC address.

• RT1 will send an ARP reply with the PC3 MAC address.

What OSI layer is responsible for establishing a temporary communication session between two applications and ensuring that transmitted data can be reassembled in proper sequence?

• Session

• Transport

• Network

• Data Link

What is a socket?

• the combination of the source and destination sequence numbers and port numbers

• the combination of a source IP address and port number or a destination IP address and port number

• the combination of the source and destination sequence and acknowledgment numbers

• the combination of the source and destination IP address and source and destination Ethernet address

What part of the URL, http://www.cisco.com/index.html, represents the top-level DNS domain?

• www

• http

• index

• com

Which term is used to describe the process of placing one message format inside another message format?

• Encapsulation

• Segmentation

• Multiplexing

• Encoding

Which characteristic is associated with UDP sessions?

• Destination devices receive traffic with minimal delay.

• Transmitted data segments are tracked.

• Destination devices reassemble messages and pass them to an application.

• Unacknowledged data packets are retransmitted.

What is the prefix length notation for the subnet mask 255.255.255.224?

• /26

• /27

• /28

• /29