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2026 NETWORK CERTIFICATION EXAM CURRENT
TESTING COMPLETE ( 127 ) QUESTIONS AND
DETAILED CORRECT ANSWERS|TOP-RATED A+.
NETWORK
Prepare for your Network Certification Exam with this focused study guide. It covers networking fundamentals, TCP/IP protocols, routing and switching, network security, and troubleshooting techniques. Emphasizes practical skills, problem-solving, and understanding modern network infrastructure. Perfect for reinforcing key concepts and boosting exam readiness. Suitable for students and IT professionals preparing for networking certification assessments. An attacker created a rogue access point (AP) with the same Service Set Identifier (SSID) as a legitimate one, and then used a Denial of Service (DoS) technique to overcome the legitimate AP. Users were forced to disconnect from the network and reassociate with the attacker's AP. What is the goal of the attacker when setting up this kind of evil twin attack? (Select all that apply.) ✓ ✓ ...... ANSWER ....... To steal user network credentials / To snoop on connections A user is connected to a remote desktop using the protocol WebSockets. What technology solution is the user using? ✓ ✓ ...... ANSWER ....... Clientless VPN with web servers
What type of Domain Name System (DNS) record holds information such as 2001:4860:4860:8888? ✓ ✓ ...... ANSWER ....... AAAA A user reported a performance issue on the network the department's web server is communicating on. After questioning a few other users, and notating some recent changes on the server and its symptoms, what other actions will a network admin most likely take to better identify the problem? ✓ ✓ ...... ANSWER ....... Try and duplicate the problem. Which technology offers a mode for simultaneous two-way communication? ✓ ✓ ...... ANSWER ....... Duplex A user is having trouble connecting to the company's WiFi network. They have verified that the password is correct and the network is indeed available. What could be a potential issue with the device not connecting? ✓ ✓ ...... ANSWER ....... Encryption protocol mismatch A company is considering using a co-location connection with a cloud service provider to support some virtual services in its data center. This will provide the company a private and hybrid cloud model to easily move services from the local infrastructure to the cloud during peak season by
A network administrator is measuring Key Performance Indicators (KPI) for an industrial network. Which of the following are examples of a KPI? (Select all that apply.) ✓ ✓ ...... ANSWER ....... Mean Time Between Failures (MTBF) / Mean Time to Repair (MTTR) Upon reviewing the inclement weather plan for Company A, the network engineer wants to purchase standby power supplies that can run on diesel or propane. What could the engineer purchase to fulfill this requirement? ✓ ✓ ...... ANSWER ....... Generator What are two parts of the first step of the CompTIA Network+ troubleshooting methodology? (Select all that apply.) ✓ ✓ ...... ANSWER ....... Identify symptoms / Gather information A server technician has removed a server blade from its rack for cleaning. The technician sees corrosion on one of the circuit boards and notices some water on the bottom of the casing. What hazards could have affected this server? (Select all that apply.) ✓ ✓ ...... ANSWER ....... Humidity / Flooding A communications company uses TIA/EIA IS-95 handsets that require each subscriber to use a code to key the modulation of their signal. The receiver uses this "key" to extract the subscriber's traffic from the radio signal. What
type of handsets is the company using? ✓ ✓ ...... ANSWER ....... CDMA A network administrator is unable to access files on a remote system. A network firewall seems to be blocking traffic from passing through. Which of the following will the administrator most likely need to reconfigure for inbound and outbound traffic? (Select all that apply.) ✓ ✓ ...... ANSWER ....... TCP port 20 / TFTP traffic A network engineer wants all wireless clients to connect to use the same broadcast domain without connecting to another wireless network. What is this called? ✓ ✓ ...... ANSWER ....... Wireless client isolation A network administrator would like to setup a group of servers to retrieve the same content from a single host on the internal network. Which of the following will allow this type of data flow? A helpdesk technician is helping a user attempt to connect to the network but they are receiving a 169 address. What is this? ✓ ✓ ...... ANSWER ....... Link-local (Select all that apply.) - CORRECT ANSWER>>>>IGMP must be used to configure group membership. / A multicast IP address is assigned to the servers.
In a Cisco switch, what would be the command to show what the device's settings are? ✓ ✓ ...... ANSWER ....... show config An organization is putting an employee through security checkpoints that include a background investigation, account creation with proper privileges, assigning a laptop, and completing security training. What kind of policy is the employee under? ✓ ✓ ...... ANSWER ....... Onboarding policy A company requires connectivity between two buildings. The buildings are over 750 meters apart. IT engineers suggest which type of fiber cabling? ✓ ✓ ...... ANSWER ....... Single mode A network engineer must build out a server application for the businesses' mail server. The engineer determines each component that is needed and how they will function holistically. What is the name of the process that the engineer is using? ✓ ✓ ...... ANSWER ....... Configuration An administrator normally working on a remote server using Remote Desktop Protocol (RDP), loses the session abruptly. The administrator pings the server and does not receive a reply. An RDP session is attempted again, and the
administrator can log in. Why was the administrator unable to ping the server? ✓ ✓ ...... ANSWER ....... ICMP traffic was blocked. A wired layer 3 network device is not functioning properly and is experiencing intermitten packet drops. IT engineers monitor the device for anomalies. Of the possible troubleshooting approaches, the engineers should configure and use which of the following options together? (Select all that apply.) ✓ ✓ ...... ANSWER ....... Protocol analyzer / Packet sniffer A network engineer needs to purchase a cost-effective solution for data storage that allows for sustained hot site redundancy. What would be the best site for this requirement? ✓ ✓ ...... ANSWER ....... Cloud Site An electrician creates several cat 6 cables to connect new computers to a network at a small company. The IT staff discovers that two cables do not work properly due to faulty crimping. Of the available methods to inspect the cables, which of the following should the IT staff utilize to find cables that do not work? ✓ ✓ ...... ANSWER ....... Cable tester
A computer technician is reading archived logs and identifies that the company was using 802.11n. Not knowing what this Wi-Fi category meant, the technician researched its origins. In recent years, what was 802.11n renamed? ✓ ✓ ...... ANSWER ....... Wi-Fi 4 A wiring professional finishes wiring a building with twisted pair cabling for a new Ethernet network. Where do the wires running throughout the building centrally terminate? ✓ ✓ ...... ANSWER ....... Patch panel A network engineer reviewed the password database for the company's networks and servers and identified that the passwords were all common words and animal names. Concerned that this would be easy to compromise, the engineer alerted this concern to the cyber team. What kind of attack could have occurred if the passwords were not changed? ✓ ✓ ...... ANSWER ....... Dictionary A network engineer wants to install an antenna that could receive and send data from all directions. What type of directional antenna would the network technician use? ✓ ✓ ...... ANSWER ....... Omni A technician is setting up an IP camera that is operating off the 802.3at standard. Which of the following should they set up for the camera? ✓ ✓ ...... ANSWER ....... PoE+
The entire office floor at a company is receiving new multi- functional phones at each office. These phones have the capability of sending and receiving regular telephone calls, text messages, and videos. Management wants to prevent as much clutter as possible so every desk looks tidy. Which of the following configurations should a network administrator implement to accommodate management's vision? (Select all that apply.) ✓ ✓ ...... ANSWER ....... Setup A network engineer conducts a redundancy check and identifies that interference exists due to a poor-quality cable. What is this finding called? ✓ ✓ ...... ANSWER ....... CRC error Which type of approach is applied by looking at each layer of the OSI (Open Systems Interconnection) model, starting from Layer 1, to establish a theory of probable cause? ✓ ✓ ...... ANSWER ....... Bottom-to-top A network technician looks at an algorithm that uses the number of hops to the destination as the route path metric. Which of the following are they looking at? ✓ ✓ ...... ANSWER ....... Distance vector PoE to connect to the phones. / Setup QoS to reserve bandwidth.
Which of the following relates to a private cloud delivery model? ✓ ✓ ...... ANSWER ....... Greater control What step of the CompTIA Network+ troubleshooting methodology involves approaching multiple problems individually? ✓ ✓ ...... ANSWER ....... 1 A traveling consultant has brought his old laptop to the help desk to trade it for an updated device. The consultant has customized a lot of the device's settings and installed a lot of his favorite software on his old computer, but the help desk intends to recycle the old laptop for use by other employees. What does the help desk need to do to get rid of any custom configurations and software on the old laptop? ✓ ✓ ...... ANSWER ....... Factory reset/wipe configuration The physical security department of a bank wants to require employees to authenticate through a locked barrier before accessing the sensitive areas of the building, such as the IT department. If implemented, which of the following will best help regulate such physical access? (Select all that apply.) ✓ ✓ ...... ANSWER ....... smart badge / biometric device An online company is seeing a quick customer growth in the utilization of custom online services. The company has forecasted a 300% increase of customer usage during the model / IaaS
summer and currently cannot support this. What cloud solutions should the company consider when providing ongoing services to its customers? (Select all that apply.) ✓ ✓ ...... ANSWER ....... Hybrid A network administrator wants a network switch to authenticate attached devices before activating their port on the switch. When combined, which authentication methods provide the means to validate a client's access to the network before being allowed access? (Select all that apply.) ✓ ✓ ...... ANSWER ....... IEEE 802.1X / EAP A security team is reviewing the authentication controls on the corporate network. Which of the following is an important reason for the team to implement role-based access and least privilege? (Select all that apply.) ✓ ✓ ...... ANSWER ....... To give rights to users implicitly. / To grant A wired layer 3 network device is not functioning properly and is experiencing intermitten packet drops. IT engineers monitor the device for anomalies. Of the possible troubleshooting approaches, the engineers should configure and use which of the following options together? users sufficient rights to perform a job.
implement if the server and client configure the same shared secret. ✓ ✓ ...... ANSWER ....... Remote Authentication Dial-in User Service (RADIUS) A criminal enacts a phishing scheme to trick a user into clicking a malicious link. As a result, the user is no longer able to access their work files. A popup message on the computer states that without paying a fee, the files are lost forever. Which attack type has the criminal executed on the user’s files? (Select all that apply.) ✓ ✓ ...... ANSWER ....... Ransomware / When testing the network configuration of a remote server, a network admin uses the ping and tracert command. Which of the following justify the admin's choice of network utilities? (Select all that apply.) ✓ ✓ ...... ANSWER ....... To test the network connectivity of the remote host. / To confirm the routing path from a Windows server. A network technician is tasked with determining the site technological capabilities of each building in the organization. When looking at the current building, the technician confirms that the building is currently empty but has the approved equipment install permits on site. What type of site is this? ✓ ✓ ...... ANSWER ....... Cold Site Crypto-malware
Using a Windows server, a network admin is trying to test a remote server's network configuration and confirm the packet's routing path. Apply the information given to determine which of the following actions will provide the appropriate information for this test. (Select all that apply.) ✓ ✓ ...... ANSWER ....... Run a ping command. / Run a tracert command. A security analyst is looking at various network traffic but can't make heads or tails of most of the packets. Which of the following traffic would they be able to read without private keys? ✓ ✓ ...... ANSWER ....... Port 110 A systems administrator is setting up a static IP for a new server with a Class A IP scheme. Which netmask lines up with a class A address? ✓ ✓ ...... ANSWER ....... / A technician is looking at signals on the 2.4 GHz spectrum using OFDM. The technician was looking at which of the following standards? ✓ ✓ ...... ANSWER ....... 802.11b Which cable type can be rated fire-retardant and is appropriate for building crawl spaces? ✓ ✓ ...... ANSWER ....... Plenum
A systems administrator wants to set up IPv4 forwarding for the purposes of load balancing and failover. Which of the following should they use? ✓ ✓ ...... ANSWER ....... Anycast A technician is setting up an IP camera that is operating off the 802.3at standard. Which of the following should they set up for the camera? ✓ ✓ ...... ANSWER ....... PoE+ In a Cisco switch, what would be the command to show what the device's settings are? ✓ ✓ ...... ANSWER ....... show config A network engineer monitors the network and follows information packets as they move through the network from hosts to endpoints. What is the engineer observing? ✓ ✓ ...... ANSWER ....... Send/Receive Traffic Networks are vulnerable to several types of malicious attacks, and network engineers must prevent such attacks by various means. One means of protection available prevents denial of service (DOS) against a route processor over control or management plane protocols and packets. What answer choice describes this security method? ✓ ✓ ...... ANSWER ....... Control plane policing A network link offers simultaneous communications in each direction. Of the following choices, which defines this
functionality? ✓ ✓ ...... ANSWER ....... Duplex An administrator configured a group of routers so that one router is the master, and all other routers are prioritized backups that monitor to the master and if the master loses connectivity one of the backups becomes the new master based on priority. What is the administrator using? ✓ ✓ ...... ANSWER ....... VRRP A company uses several Windows Servers for Active Directory, SQL Server, RADIUS, DHCP, and DNS. Management pushes to move to the cloud. IT suggests moving services in a staggered fashion as to not cause disruption. IT moves SQL server instances to the cloud as a start. IT migrates this specific function to which of the following service types? ✓ ✓ ...... ANSWER ....... PaaS A network administrator is designing a set of Internet Protocol (IP) addresses for a Class C network in order to lease it out to clients when booting. A set of printers will require the same IP address upon renewing the lease. Which of the following network components will support this design? (Select all that apply.) ✓ ✓ ...... ANSWER ....... IP reservation / DHCP An engineer plans to configure a device as transparent, server
