IT 341 GMU MIDTERM EXAM QUESTIONS WELL ANSWERED L;ATEST UPDATE 2026

IT 341 GMU MIDTERM EXAM QUESTIONS WELL ANSWERED L;ATEST UPDATE 2026 A client packet is received by a server. The packet has a destination port number of 22. What service is the client requesting? SSH TFTP DHCP DNS - Answers SSH Refer to the exhibit. What does the value of the window size specify? Window size: 9017 the amount of data that can be sent at one time the amount of data that can be sent before an acknowledgment is required the total number of bits received during this TCP session a random number that is used in establishing a connection with the 3-way handshake - Answers the amount of data that can be sent before an acknowledgment is required To which TCP port group does the port 414 belong? well-known private or dynamic public registered - Answers Well-known Refer to the exhibit. An administrator is trying to configure the switch but receives the error message that is displayed in the exhibit. What is the problem? Switch1 config t '^ % Invalid input detected at '^' marker The entire command, configure terminal, must be used. The administrator is already in global configuration mode. The administrator must first enter privileged EXEC mode before issuing the command. The administrator must connect via the console port to access global configuration mode. - Answers The administrator must first enter privileged EXEC mode before issuing the command. What is a user trying to determine when issuing a ping 10.1.1.1 command on a PC? if the TCP/IP stack is functioning on the PC without putting traffic on the wire if there is connectivity with the destination device the path that traffic will take to reach the destination what type of device is at the destination - Answers if there is connectivity with the destination device What is a characteristic of a switch virtual interface (SVI)? 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. Although it is a virtual interface, it needs to have physical hardware on the device associated with it. SVIs do not require the no shutdown command to become enabled. SVIs come preconfigured on Cisco switches. - 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 happens when a switch receives a frame and the calculated CRC value is different than the value that is in the FCS field? The switch notifies the source of the bad frame. The switch places the new CRC value in the FCS field and forwards the frame. The switch drops the frame. The switch floods the frame to all ports except the port through which the frame arrived to notify the hosts of the error. - Answers The switch drops the frame. Two network engineers are discussing the methods used to forward frames through a switch. What is an important concept related to the cut-through method of switching? The fragment-free switching offers the lowest level of latency. Fast-forward switching can be viewed as a compromise between store-and-forward switching and fragment-free switching. Fragment-free switching is the typical cut-through method of switching. Packets can be relayed with errors when fast-forward switching is used. - Answers Packets can be relayed with errors when fast-forward switching is used. Which two issues can cause both runts and giants in Ethernet networks? (Choose two.) using the incorrect cable type half-duplex operations a malfunctioning NIC electrical interference on serial interfaces CRC errors - Answers half-duplex operations a malfunctioning NIC Which two functions are performed at the LLC sublayer of the OSI Data Link Layer to facilitate Ethernet communication? (Choose two.) implements CSMA/CD over legacy shared half-duplex media enables IPv4 and IPv6 to utilize the same physical medium integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper implements a process to delimit fields within an Ethernet 2 frame places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame Other case responsible for internal structure of Ethernet frame applies source and destination MAC addresses to Ethernet frame integrates Layer 2 flows between 10 Gigabit Ethernet over fiber and 1 Gigabit Ethernet over copper enables IPv4 and IPv6 to utilize the same physical medium handles communication between upper layer networking software and Ethernet NIC hardware Other case adds Ethern - Answers enables IPv4 and IPv6 to utilize the same physical medium places information in the Ethernet frame that identifies which network layer protocol is being encapsulated by the frame handles communication between upper layer networking software and Ethernet NIC hardware adds Ethernet control information to network protocol data Which two commands could be used to check if DNS name resolution is working properly on a Windows PC? (Choose two.) nslookup ping ipconfig /flushdns net nbtstat - Answers nslookup ping A small advertising company has a web server that provides critical business service. The company connects to the Internet through a leased line service to an ISP. Which approach best provides cost effective redundancy for the Internet connection? Add a second NIC to the web server. Add a connection to the Internet via a DSL line to another ISP. Add another web server to prepare failover support. Add multiple connections between the switches and the edge router. - Answers Add a connection to the Internet via a DSL line to another ISP. Only employees connected to IPv6 interfaces are having difficulty connecting to remote networks. The analyst wants to verify that IPv6 routing has been enabled. What is the best command to use to accomplish the task? copy running-config startup-config show interfaces show ip nat translations show running-config - Answers show running-config 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? Floor(config)# interface gi0/1 Floor(config-if)# description Connects to the Registrar LAN Floor(config-if)# ip address 192.168.235.234 255.255.255.0 Floor(config-if)# no shutdown Floor(config-if)# interface gi0/0 Floor(config-if)# description Connects to the Manager LAN Floor(config-if)# ip address 192.168.234.114 255.255.255.0 Floor(config-if)# no shutdown Floor(config-if)# interface s0/0/0 Floor(config-if)# description Connects to the ISP Floor(config-if)# ip address 10.234.235.254 255.255.255.0 Floor(config-if)# no shutdown Floor(config-if)# interface s0/0/1 Floor(config-if)# description Connects to the Head Office WAN Floor(config-if)# ip address 203.0.113.3 255.255.255.0 Floor(con - Answers 192.168.235.234 A router boots and enters setup mode. What is the reason for this? The IOS image is corrupt. Cisco IOS is missing from flash memory. The configuration file is missing from NVRAM. The POST process has detected hardware failure. - Answers The configuration file is missing from NVRAM. What service is provided by POP3? Retrieves email from the server by downloading the email to the local mail application of the client. An application that allows real-time chatting among remote users. Allows remote access to network devices and servers. Uses encryption to provide secure remote access to network devices and servers. - Answers Retrieves email from the server by downloading the email to the local mail application of the client. Two students are working on a network design project. One student is doing the drawing, while the other student is writing the proposal. The drawing is finished and the student wants to share the folder that contains the drawing so that the other student can access the file and copy it to a USB drive. Which networking model is being used? peer-to-peer client-based master-slave point-to-point - Answers peer-to-peer Which command is used to manually query a DNS server to resolve a specific host name? tracert ipconfig /displaydns nslookup net - Answers nslookup Which PDU is processed when a host computer is de-encapsulating a message at the transport layer of the TCP/IP model? bits frame packet segment - Answers segment Which two OSI model layers have the same functionality as two layers of the TCP/IP model? (Choose two.) data link network physical session transport - Answers network transport Which three layers of the OSI model are comparable in function to the application layer of the TCP/IP model? (Choose three.) presentation physical network data link transport application session - Answers presentation application session 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