IT Technical Interview Practice Test

These questions are part of the practice quiz. Start practicing

• DHCP stands for Dynamic Host Configuration Protocol. What is its primary function?
• What is the primary function of a router in a network?
• What best describes the difference between a workgroup and a domain?
• What is DNS and which port does it use?
• PTR records are commonly referred to as which type of DNS lookup?
• Once the IP address is obtained, which type of connection is typically established before sending the request?
• What is commonly considered the primary reason for a slow computer, and what initial remediation is suggested?
• Group Policy in Active Directory is used to apply permissions or settings to whom?
• Why might an organization use a VPN instead of direct-dialing a private server?
• What are cookies used for?
• Which transport-layer protocols are commonly used by application protocols to connect clients and servers?
• When a user reports a login failure despite entering the correct credentials, what is a reasonable initial step?
• Application protocols connect the client and server by using which mechanism?
• In the phishing scenario, what credentials were captured when the user entered them on a malicious form?
• DNS can perform two types of queries. What are they?
• SSH is used to establish a secure connection between devices. Which option best reflects this?
• Safe Mode is used to troubleshoot hardware and remove viruses, and is entered by which procedure?
• What sequence does a browser follow when a user enters a URL and hits Enter?
• What are the core characteristics of Internet Protocol at the network layer?
• Which statement accurately describes the relationship among domain, tree, and forest?
• What is an IP address and how do you find it?
• Which statement about UDP is true?
• If a monitor is not displaying, and the monitor is plugged in with power, what is the most likely cause according to common PC troubleshooting guidance?
• Which category cable can run up to 10 Gb/s?
• What does pinging 127.0.0.1 indicate?
• Which statement differentiates RAID 1 and RAID 0?
• A VPN connects components and resources of two private networks over another public network. Which is the public network most commonly used?
• When you type a URL and press Enter, which of the following best describes the initial step the browser takes to resolve the domain?
• Which statement best describes the difference between a router and a switch?
• Why is Safe Mode used when troubleshooting login issues?
• What is the biggest practical advantage of using a PST file for Outlook data?
• Which scenario is a plausible reason a user cannot send or receive emails?
• In estimating the number of streetlights in a country, which metric would be most directly useful?
• Which problem-solving process is commonly used when addressing bugs in software?
• A user is unable to complete a training via ADLS because the videos will not load; which factor is commonly involved?
• What does TCP/IP provide in network communication?
• Which sequence correctly describes configuring a printer on Windows in a networked environment?
• What is the purpose of defragmentation tools on a traditional hard disk?
• Which of the following is an Active Directory object type?
• Which cadence best demonstrates ongoing professional development?
• Which of the following best describes the role of DHCP in large networks?
• Which Windows command is used to scan and repair corrupted system files?
• What is a primary job of the Network Layer?
• What is a typical NAT behavior when an external host tries to reach a private device?
• What does PST stand for and what is its purpose?
• If the IP address is not found in those caches, what happens next?
• Which statement describes how a router determines the best path for a packet?
• What is a prudent first step when attempting to recover data from a virus-infected computer?
• Which command would renew the DHCP-assigned IP address on Windows?
• What does the Blue Screen of Death indicate?
• When a user experiences slow web performance, which browser-level action is a sensible first step?
• What does RAID stand for?
• What does IMAP primarily do in email communication?
• Which approach is described as effective for blocking Facebook for all users in a company?
• What is the primary purpose of the Domain Name System (DNS)?
• Which statement is true about network hubs and switches?
• An access point in a wireless network primarily functions as:
• In which scenario is UDP particularly suitable?
• If a packet is lost or arrives out of order during a TCP session, what does TCP do?
• Which layer is responsible for using ports to connect clients and servers in application protocols?
• Amazon S3 is best described as which type of service?
• In Windows Server 2008, which method backs up Active Directory?
• What is a proxy server primarily used for?
• What is a reasonable way to keep your technical knowledge up to date?
• If a printer prints a strange pattern, what is a recommended first troubleshooting step?
• Which command can be used to obtain the MAC address for a NIC?
• What is a VLAN and its purpose?
• Which statement accurately describes differential backups?
• Which protocol is used to assign IP addresses automatically in a network?
• Which skill is essential when solving IT problems during interviews?
• DHCP is best described as?
• To estimate how many golf balls fit into a school bus, which method is appropriate?
• What is Active Directory in Windows Server?
• Which commands would you use to test network connectivity?
• In cloud service platforms like AWS, which statement is accurate?
• Which devices can compensate for the UTP length limitation?
• What is the primary purpose of NAT in many networks?
• Besides establishing a connection, what is a key function of TCP?
• If all external websites are unreachable, which issue is most likely?
• Which statement about RAID 0 is true?
• What is a typical consequence for external entities when contacting a device behind NAT?
• What is a typical subnet mask example?
• What is Amazon S3 and how is it related to AWS?
• What does Garbage Collection do in Active Directory?
• What is SYSVOL used for on Domain Controllers?
• Which ports are used by FTP?
• What is Group Policy used for?
• Which set of steps is appropriate to diagnose a slow network connection?
• What is a Default Gateway?
• Which statement best describes TCP's role in the transport layer?
• Which LAN cable can carry 1 Gbps and 10 Gbps according to common standards?
• What does UDP stand for?
• During rendering, the browser may request additional resources based on the HTML tags. Which statement is correct?
• What is a logical drive best described as?
• What is a cross cable used for?
• Active Directory is a feature in which operating system family?
• What happens when you run ipconfig /release followed by ipconfig /renew?
• SSH stands for?
• Boot.ini is an initialization file found on older Windows systems. What is its purpose?
• Which action is recommended to ensure a system is not infected with a virus?
• In a domain environment, what is the primary purpose of the Domain Controller?
• Which of the following would help quantify the scale of a network problem when asked in an interview?
• Which port is used for HTTP traffic in the described setup?
• In IT support, what practice best handles an angry client?
• What best describes a Virtual Machine?
• What is the purpose of enabling Network Discovery in Windows?
• If an object is deleted from Active Directory while a domain controller is offline, what temporary artifact is created that must be replicated?
• Which statement about UDP is true?
• Windows Domain provides access to which items as part of a database controlled by a domain controller?
• What is a firewall?
• In a typical DHCP workflow, which sequence describes the interaction?
• Which tool is used to back up Active Directory in Windows Server 2003?
• Which statement about HTTP and HTTPS is true?
• Which feature in Active Directory enables centralized security policies and software deployment?
• Which LAN cable is specified for 10 Gbps networks at full specification?
• Which tool is suggested to extract files from archives?
• Which statement about FAT32 and NTFS is true?
• What is the primary purpose of DNS in a network?
• A VPN masks which aspects?
• Why is NAT commonly used in private networks?
• To access an encrypted email attachment, which action is described?
• When you receive a trouble ticket that the monitor is not working, what is the first thing you should check?
• What is the maximum length of a single-segment UTP cable?
• In Windows, which tab is used to modify NTFS permissions on a folder?
• When asked how future technology advances might impact your job, what should your answer reflect?
• What is a VPN?
• Which of the following is a listed cause for login problems on a computer?
• What is the loopback IP address?
• During DHCP, what client message initiates the process to obtain an IP address?
• What approach is best when explaining a technical concept to a non-technical audience?
• How does a VPN generally work?
• IP addresses assigned by DHCP are typically
• What is the primary purpose of Windows Server in a network?
• Which approach is prudent when dealing with tight deadlines on technical projects?
• Which ports are associated with the described email servers?
• What is the primary purpose of a Virtual Private Network (VPN)?
• What is the primary use of the ping command?
• Which file system supports hard links?
• SCSI is a type of bus used to connect which types of devices?
• Which statement about backups is true?
• What is the most common reason a PC clock resets on restart?
• Which statement about IP addresses is true?
• Where are logon scripts and Group Policy files replicated for domain members?
• Which method allows you to access Safe Mode on Windows 10?
• What is DHCP primarily used for?
• Which statement correctly describes serial and parallel ports?
• Which statement best defines a domain in a Windows network?
• What is the primary role of a domain controller?
• Where is the Active Directory database stored?
• If a host cannot be reached by its name but can be reached by its IP address, what does this indicate?
• What is a Lingering Object in Active Directory?
• What is the primary function of DNS in networking?
• Which statement describes a typical rationale for using a VPN?
• Which command is used to analyze the path from a local host to a server and show intermediate hops?
• What is phishing?
• Which recovery option can revert Windows settings to a previous state without fully reinstalling Windows?
• What does it mean if a domain is described as centralized to user accounts, computers, printers, and policies?
• What type of file is commonly used to back up Outlook data?
• What does HTTP stand for?
• What is the ipconfig command used for?
• What practice best demonstrates ongoing professional development in IT?
• Which upgrades are commonly considered as a last resort to improve PC performance?
• What term describes a login session where the user is only able to login with a Temporary profile?
• What is a .PST file primarily used for in Microsoft Outlook?
• What is a Network Switch?
• Which command can you run to view the Default Gateway on Windows?
• If a user can only access .mil sites and receives Access Denied for others, what is likely needed?
• What is the function of a Default Gateway?
• How many layers are in the OSI model?
• When asked about salary expectations in an IT role, which approach is most effective?
• What describes an effective approach to answering IT interview questions?
• The server response contains the web page and other details. Which of the following is commonly included?
• Which statement correctly describes a forward DNS lookup?
• What is Active Directory best described as?
• What does a PTR (Pointer) record do?
• What is the purpose of a logical drive in a computer storage system?
• Which components are typically involved in delivering maps and routing in a modern service like Google Maps?
• Active Directory can be used to assign policies to a specific group of users.
• What does the browser typically send after the connection is established to fetch the page?
• Application protocols are used for network configuration, management, and services. How do they typically connect clients and servers?