CCNA Practice Final Exam 1 Questions and Answers (Verified Answers) 2023, Exams of Nursing

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(Verified Answers) 2023

What is the default subnet mask for an IP address of 64.100.19.14? - correct answer ✅255.0.0.0. A network administrator has been notified that users have experienced problems gaining access to network resources. What utility could be used to directly query a name server for information on a destination domain? - correct answer ✅lookup. What does the term "attenuation" mean in data communication? - correct answer ✅loss of signal strength as distance increases. What is the function of CSMA/CA on a wireless Ethernet network? - correct answer ✅to prevent collisions. The area covered by a single AP is known as what? - correct answer ✅basic service set. The help desk at a large packaging company receives a call from a user who is concerned about lost data files on the local PC. The help desk technician learns that the user clicked on an icon that appeared to be a program

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update, but no updates were scheduled for that program. What type of attack has likely occurred? - correct answer ✅worm. Which installation option enables a single physical resource to function simultaneously as multiple logical resources? - correct answer ✅multi-boot. Which part of the electromagnetic spectrum is commonly used to exchange data between a PDA and a computer? - correct answer ✅infrared A company has a web server that must be accessible to both external and internal clients. Which security policy best practice should be followed to maximize security of the server? - correct answer ✅Place the web server in a DMZ What is specified by the host bits in an IP address? - correct answer ✅identity of the computer on the network. For an IP address, what component decides the number of bits that is used to represent the host ID? - correct answer ✅subnet mask.

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What advantage does a peer-to-peer network have over a client-server network? - correct answer ✅It increases scalability. Refer to the exhibit. If H4 sends a message to H1 and the destination MAC address is in the MAC table for both Switch1 and Switch2, which host devices will receive the message? - correct answer ✅only H1. Refer to the graphic. Assume that the exhibited output is from a host that is connected to a Linksys integrated router. What is one of the first things you should check? - correct answer ✅link status LED on the front of the router Which of the following are the address ranges of the private IP addresses? (Choose three.) - correct answer ✅10.0.0.0 to 10.255.255.255, 172.16.0.0 to 172.31.255.255, 192.168.0.0 to 192.168.255. When acting as a DHCP server, an integrated router can provide what three types of information to a client? (Choose three.) - correct answer ✅default gateway, dynamic IP address, DNS server address

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What is the purpose of spam filter software? - correct answer ✅It examines incoming e-mail messages to identify the unsolicited ones. A network engineer wants to represent confidential data in binary format. What are the two possible values that the engineer can use? (Choose two.) - correct answer ✅0, 1 Which protocol in its default configuration downloads e-mail messages to the client computer and deletes them from the server? - correct answer ✅POP Refer to the exhibit. A user on host A sends an e-mail to the user on host B. Which type of message does host A send? - correct answer ✅Unicast What are two best practices that are used when configuring a small home WLAN? (Choose two.) - correct answer ✅the encryption of the SSID, the use of pre-shared keys What type of message is sent to a specific group of hosts? - correct answer ✅Broadcast

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Refer to the exhibit. Why would a network administrator use the network mode that is shown? - correct answer ✅to support hosts that use different 802.11 standards A network technician is required to provide access to the Internet for a large company. What is needed to accomplish this task? - correct answer ✅ISP Which type of computer uses an integrated monitor and keyboard? - correct answer ✅Laptop Which transport layer protocol is used when an application requires acknowledgment that data has been delivered? - correct answer ✅TCP Refer to the exhibit. What cabling fault does the exhibit represent? - correct answer ✅split pair Which two statements are true about local applications? (Choose two.) - correct answer ✅They are stored on the local hard disk, They run on the computer where they are installed

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Where do ISPs get the public addresses that they assign to end users? - correct answer ✅ISPs obtain address blocks from registry organizations Which two transport layer protocols enable hosts to communicate and transfer data? (Choose two.) - correct answer ✅TCP, UDP Which part of a data packet is used by a router to determine the destination network? - correct answer ✅destination IP address When terminating UTP cabling, why is it important to untwist only a small amount of each wire pair? - correct answer ✅minimizes crosstalk A learner wants to interact with the operating system of a computer. Which two methods can be used for this? (Choose two.) - correct answer ✅CLI, GUI What is the purpose of the ipconfig /release command? - correct answer ✅It forces a client to give up its current IP address.

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What is the purpose of creating a DMZ during network firewall implementation? - correct answer ✅to allow for a publicly accessible zone without compromising the internal network A user is unable to send e-mail. While troubleshooting this problem, the network technician first verifies the physical connectivity of cables. Which troubleshooting approach is being followed? - correct answer ✅bottom-up What is the function of the DNS server? - correct answer ✅It translates a computer or domain name to the associated IP address What layer is the first point of entry for a host into the network? - correct answer ✅access layer Your school network blocks all websites related to online gaming. What type of security policy is being applied? - correct answer ✅acceptable use A host sent a message that all other hosts on the switched local network received and processed. What type of domain are all these hosts a part of? - correct answer ✅Broadcast domain

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What are two examples of storage peripheral devices? (Choose two.) - correct answer ✅Flash drive, external DVD What type of cable would be required to connect a Linksys router to a wired PC? - correct answer ✅crossover cable Refer to the exhibit. What is the effect of setting the security mode to WEP on the Linksys integrated router? - correct answer ✅The WEP security mode encrypts network traffic during transmission between the AP and the wireless client In an attempt to verify connectivity, a user issues the ping command to a device that is not on the local network. The ping is unsuccessful. What can be determined from this result? - correct answer ✅Further troubleshooting will be required to reach a definite conclusion Which two causes of networking problems are related to the physical layer? (Choose two.) - correct answer ✅disconnected cables, improper operation of cooling fans

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What is an advantage of selecting an operating system that has a commercial license over one with a GPL license? - correct answer ✅The commercial license-based operating system provides structured support. Refer to the exhibit. Assume that the command output is from a wireless DHCP client that is connected to a Linksys integrated router. What can be deduced from the output? - correct answer ✅The wireless connection is operational Refer to the exhibit. What is the purpose of assigning a network name of College? - correct answer ✅It identifies the wireless LAN Because of an increasing number of users, bandwidth per user on a WLAN has decreased to a point where users are complaining about poor performance. What can be done to improve the user experience? - correct answer ✅Reduce the number of devices using each channel A network technician suspects that malware on a user PC is opening multiple TCP connections to a specific foreign host address. Which Windows

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command line utility can be used to confirm the multiple TCP connections? - correct answer ✅Ping