CET 249 FINAL EXAM REVIEW QUESTIONS WELL ANSWERED LATEST UPDATE 2026

CET 249 FINAL EXAM REVIEW QUESTIONS WELL ANSWERED LATEST UPDATE 2026 What routing table entry has a next hop address associated with a destination network? - Answers remote routes If the default gateway is configured incorrectly on the host, what is the impact on communications? - Answers The host can communicate with other hosts on the local network, but is unable to communicate with hosts on remote networks. Why is NAT not needed in IPv6? - Answers Any host or user can get a public IPv6 network address because the number of available IPv6 addresses is extremely large. Which term describes a field in the IPv4 packet header that contains a unicast, multicast, or broadcast address? - Answers destination IPv4 address Three devices are on three different subnets. Match the network address and the broadcast address with each subnet where these devices are located. (Not all options are used.) Device 1: IP address 192.168.10.77/28 on subnet 1 Device 2: IP address192.168.10.17/30 on subnet 2 Device 3: IP address 192.168.10.35/29 on subnet 3 - Answers What does the IP address 192.168.1.15/29 represent? - Answers broadcast address What type of address is 198.133.219.162? - Answers public Given network 172.18.109.0, which subnet mask would be used if 6 host bits were available? - Answers 255.255.255.192 Network information: * local router LAN interface: 172.19.29.254 / fe80:65ab:dcc1::10 * local router WAN interface: 198.133.219.33 / 2001:db8:FACE:39::10 * remote server: 192.135.250.103 What task might a user be trying to accomplish by using the ping 2001:db8:FACE:39::10 command? - Answers verifying that there is connectivity to the internet A network technician types the command ping 127.0.0.1 at the command prompt on a computer. What is the technician trying to accomplish? - Answers testing the integrity of the TCP/IP stack on the local machine Which two ICMP messages are used by both IPv4 and IPv6 protocols? (Choose two.) - Answers route redirection protocol unreachable What is a characteristic of a switch virtual interface (SVI)? - Answers An SVI is created in software and requires a configured IP address and a subnet mask in order to provide remote access to the switch. What is a user trying to determine when issuing a ping 10.1.1.1 command on a PC? - Answers if there is connectivity with the destination device Match the descriptions to the terms. (Not all options are used.) A) enables the user to interact with the OS by pointing and clicking B) The part of the OS that interfaces with applications and the user C) part of the OS that interacts directly w/ device hardware D) users interact with the OS by typing commands - Answers A) GUI B) shell C) kernel D) CLI "% Invalid input detected at '^' marker." An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem? - Answers The administrator must first enter privileged EXEC mode before issuing the command. Which destination address is used in an ARP request frame? - Answers FFFF.FFFF.FFFF Refer to the exhibit. The exhibit shows a small switched network and the contents of the MAC address table of the switch. PC1 has sent a frame addressed to PC3. What will the switch do with the frame? - Answers The switch will forward the frame to all ports except port 4. Refer to the exhibit. PC1 issues an ARP request because it needs to send a packet to PC3. In this scenario, what will happen next? - Answers RT1 will send an ARP reply with its own Fa0/0 MAC address. What OSI physical layer term describes the measure of the transfer of bits across a medium over a given period of time? - Answers throughput Which two statements describe the characteristics of fiber-optic cabling? (Choose two.) - Answers Fiber-optic cabling does not conduct electricity. Fiber-optic cabling is primarily used as backbone cabling. Refer to the exhibit. What is the maximum possible throughput between the PC and the server? - Answers 128kb/s Match the description with the media. (Not all options are used.) A) STP B) wireless C) Optical Fiber D) coaxial This type of copper media is used in industrial or similar environments where there is a lot of interference. This type of media provides the most mobility options. This type of media is used for high transmission speed and can also transfer data over long distances. Traditionally used for television but can now be used in a network to connect the customer location to the wiring of the customer premises - Answers A) This type of copper media is used in industrial or similar environments where there is a lot of interference. B) This type of media provides the most mobility options. C) This type of media is used for high transmission speed and can also transfer data over long distances. D) Traditionally used for television but can now be used in a network to connect the customer location to the wiring of the customer premises. To which TCP port group does the port 414 belong? - Answers well-known Refer to the exhibit. What does the value of the window size specify? - Answers the amount of data that can be sent before an acknowledgment is required A client packet is received by a server. The packet has a destination port number of 22. What service is the client requesting? - Answers SSH Refer to the exhibit. A user issues the command netstat -r on a workstation. Which IPv6 address is one of the link-local addresses of the workstation? - Answers fe80::30d0:115:3f57:fe4c/128 What type of IPv6 address is represented by ::1/128? - Answers loopback Which is the compressed format of the IPv6 address fe80:0000:0000:0000:0220:0b3f:f0e0:0029? - Answers fe80::220:b3f:f0e0:29 Match the command with the device mode at which the command is entered. (Not all options are used.) A) login B) service password-encryption C) ip address 192.168.4.4 255.255.255.0 D) copy running-config startup-config E) enable R1(config)# R1 R1(config-router)# R1# R1(config-line)# R1(config-if)# - Answers A) R1(config-line)# B) R1(config)# C) R1(config-if)# D) R1# E) R1 Refer to the exhibit. A network administrator is connecting a new host to the Registrar LAN. The host needs to communicate with remote networks. What IP address would be configured as the default gateway on the new host? - Answers 192.168.235.234 A router boots and enters setup mode. What is the reason for this? - Answers The configuration file is missing from NVRAM. Although CSMA/CD is still a feature of Ethernet, why is it no longer necessary? - Answers the use of full-duplex capable Layer 2 switches