ITS Certiport Networking Practice Test

These questions are part of the practice quiz. Start practicing

• What is the purpose of Spanning Tree Protocol (STP) in Ethernet networks?
• A LAN has no access to the perimeter network.
• The tracert command can display a list of routers being used for all active connections.
• In terms of traffic management, QoS primarily focuses on:
• What is a DMZ in network security and when is it used?
• Which VPN securely connects two portions of a private network or two private networks?
• Which device operates at Layer 2 to forward frames within a local area network using MAC addresses?
• QoS is primarily used to what in a network?
• Which VPN type enables remote users to access a private network over the Internet?
• Which device forwards IP packets between networks?
• What is the IPv6 loopback address?
• In a network where every node is connected to every other node, this is known as?
• What is the purpose of traceroute (tracert) in network troubleshooting?
• The TCP/IP transport and Internet layers corresponds with layers 3 and 4 of the OSI model.
• What is NAT overload (PAT) and why is it beneficial for home networks?
• Define QoS and give an example of its use.
• A forwarder in DNS is used to forward queries to another DNS server when the local server cannot resolve them.
• In which topology is each computer connected by a single cable to a central device?
• How does a hub differ from a switch in terms of data forwarding?
• What is the primary function of the OSI model's Transport layer?
• Which statement best describes a connection-oriented protocol with guaranteed service?
• What is channel planning in the 2.4 GHz wireless band and why is it important?
• What is the purpose of a proxy server?
• What is the role of a default gateway in routing packets to destinations outside the local subnet?
• Name examples of Layer 2 and Layer 3 networking devices.
• Which statement best describes IPv6 address space compared to IPv4?
• What is the difference between a static and a dynamic routing protocol?
• What does the 0.0.0.0/0 route represent in IP routing?
• What is the difference between WPA2-PSK (AES) and WPA3-Personal security?
• Which statement best describes a broadcast address in an IPv4 subnet?
• Which statement best describes QoS?
• How does NAT overload (PAT) relate to inbound connections from the internet?
• The TCP/IP model has four layers, which correspond with the OSI model's seven layers.
• IPv6 addresses can begin with Fe80 prefix.
• Which NAT type maps multiple private addresses to a single public IP using port numbers?
• QoS allows you to define the priority traffic on the network.
• Which sequence lists the OSI layers in order from top to bottom?
• Which feature of IPv6 helps devices configure themselves automatically on a network?
• In which topology is a signal typically forwarded by each node to the next node forming a loop?
• In a 192.168.10.0/24 network, what is the broadcast address?
• Which IP address range is commonly used for private LANs?
• What happens when a client cannot obtain an IP address from DHCP and does not have APIPA?
• The tracert command displays router addresses that are traversed between a source and a destination.
• Which term describes the variation in packet delay in a network?
• Which option correctly describes a function of QoS?
• What term describes the device that forwards frames based on MAC addresses and maintains a MAC address table?
• A wireless bridge increases the wireless signal strength of the access point.
• Which VPN type is typically used to connect two private networks at different sites securely?
• When a switch does not know the destination port for a frame, what action is typically taken?
• Which VPN allows a remote user to connect to a private network from anywhere on the Internet?
• QoS is used to manage what aspect of traffic?
• IPv6 addresses can be compressed using :: to replace zeros.
• In network management, QoS is used to do which of the following?
• Which IPv6 address type is used for Internet traffic?
• Compare Cat5e and Cat6 ethernet cables in terms of shielding and maximum typical speeds.
• Which statement about private IP addresses (RFC 1918) is accurate?
• Which protocol resolves IP addresses to MAC addresses?
• Wireless bridges always work in pairs.
• Quality of Service (QoS) is used to prioritize network traffic.
• What is the primary role of a router compared to a switch?
• Which topology features a central connectivity device to which all nodes connect?
• What is the main purpose of a VLAN in a LAN?
• Which DNS record types and their primary purposes (A, AAAA, CNAME, MX)?
• FeC0::9C5A is a valid Site-Local IPv6 address.
• A wireless bridge connects Ethernet-based devices to the network.
• Which statement best describes the use of VLSM?
• Ipv6 addresses are 64 bit in length.
• Which IPv6 address type is used for local network operations?
• Which statement about QoS is true?
• Which statement about the use of QoS in a corporate network is most accurate?
• When evaluating QoS, you should expect it to:
• Which OSI layer is responsible for end-to-end data transport and reliability?
• With a recursive DNS query, the DNS server will contact any other DNS servers it knows about to resolve the request.
• Which notation is used for IPv6 addresses?
• A perimeter network typically contains servers that require Internet access, such as web or email servers.
• Dynamic Routing provides the ability to add networks automatically by learning them from other RIP routers.
• Distinguish between a MAC address and an IP address and where each is used.
• Which CIDR prefix corresponds to the subnet mask 255.255.255.0?
• Which of the following is a true property of QoS?
• What is the concept of a default route and how is it represented?
• FeC0::9C5A is a valid IPv6 address of which type?
• Which ports are used by HTTP and HTTPS, and what is their security difference?
• Dynamic Routing provides the ability to select the best route based on routing metrics.
• Which topology has every computer connected to every other computer?
• The value of any IPv4 octet can be from 0 to 256.
• Which statement about a hub's data forwarding behavior is correct?
• Layer 3 of the OSI model controls routing between network devices.
• Dynamic Routing provides the ability to automatically remove routes from the routing table when other RIP neighbors delete them.
• IPv4 octets are 8-bit fields in IPv4 addresses.
• Which DNS record type maps a hostname to an IPv6 address?
• Which description matches the TCP protocol?
• Which statement best describes a typical use case for a DMZ in a modern network architecture?
• What term refers to a system of interconnected networks?
• Which range is a private network address?
• Layer 4 of the OSI model controls dialogue between computers.
• Name and describe the common NAT types used in small networks.
• Which device is a Layer 3 device?
• HTTP, TELNET, FTP, and SMTP protocols operate on Layer 7 of the OSI model.
• Which DNS record designates mail servers for a domain?
• What is ARP and what problem does it solve?
• Which security standard uses SAE authentication and stronger encryption for personal networks?
• Which protocol operates at the TCP/IP Application layer and is used to transfer files?
• Differentiate between recursive and iterative DNS queries.
• Which device provides wireless access to clients in a wired network?
• Which of the following statements about IPsec usage is true?
• 21DA:D3:0:2F:3B:2AA:FF:FE:28:9C 5A is a valid IPV6 unicast address.
• The number of connections equals the total number of computers minus one. Which topology does this describe?
• Which statement about wireless bridges is consistent with common network behavior?
• A DNS server makes an iterative query as it tries to find names outside of its local domain when it is not configured with a forwarder.
• Which IP range corresponds to the loopback address?
• Which statement best describes NAT and PAT?
• Name common fiber optic connector types and their typical use.
• Which statement correctly describes major differences between IPv4 and IPv6?
• Which of the following is true regarding QoS and bandwidth?
• True or false: QoS allows you to control bandwidth.
• Which of the following statements about IPsec is true?
• Which OSI layer is responsible for routing decisions and logical addressing?
• The OSI seven-layer model includes Application, Presentation, and Session layers among its top three.
• The TCP/IP application layer corresponds with the top four layers of the OSI model.
• What is the function of a firewall in a network?
• Which statement best describes a connectionless, best-effort protocol?
• Fe80::F856:02AA is a valid link-local (APIPA) IPv6 address.
• What is the primary purpose of a perimeter network (DMZ) in a network design?
• Which description matches the UDP protocol?
• In which topology does each workstation act as a repeater to forward signals?
• Which of the following statements is true according to QoS basics?
• IPv6 addresses are divided into how many blocks, and what is the size of each block?
• An IPv4 octet value can be 256.
• IPv6 addresses are 128 bits long.
• Which network description best describes a network that extends internal resources to external partners with controlled access?
• Which group of protocols are considered Application Layer protocols?
• Which statement is correct about QoS capabilities?
• Which statement best describes the function of a firewall in a network?
• What does a DNS AAAA record map?
• What is the purpose of subnetting in IPv4 networks?
• What does SLAAC stand for?
• Which capability is accurately attributed to QoS?
• Outline a basic structured approach to network troubleshooting.
• A switch sends broadcast packets to the uplink port only.
• Which of the following is not a typical function of a proxy server?
• In which topology is there a central connectivity device that all computers connect to?
• Which DNS record differentiates A, AAAA, CNAME, and MX records?
• Define latency, jitter, and throughput in network performance terms.
• In a typical home network using private IPv4 addressing, which device assignment best describes its role at Layer 3?
• What is SNMP used for in network management?
• Which topology has each node connected to exactly two other nodes?
• Which tool would you use to display the path packets take to a destination in Windows?
• Describe the DHCP process sequence used to assign an IP address to a client.
• Is 0:0:0:0:0:0:0:1 the loopback address for IPv6?
• Which statement aligns with QoS capabilities?
• What is the role of an access point in an enterprise network versus a home network?
• Fe80::F856:02AA is a valid IPv6 address used for which scope?
• It is standard practice to divide the binary bits of an IPv4 address into 8-bit fields named octets.
• An IPv4 address consists of 64 bits.
• Which term describes a network that allows access only to users within an organization?
• When an iterative query cannot be resolved from local data, the query needs to be escalated to a root DNS server.
• Which range represents multicast addresses?
• What is DHCP relay (IP helper) and why is it used?
• Which protocol uses port 443?
• A switch sends unicast packets to one destination port only.
• Which protocol uses port 21?
• Which statement best contrasts TCP and UDP?
• Fe80::2AA;FF:FE 28: 9C 5A is a valid IPv6 address.
• Which protocol is used to map IP addresses to hardware addresses on a local network?
• A perimeter network is typically used to grant internal clients access to external resources.
• Which protocol uses port 25?
• Which network type provides controlled access for specific business or educational purposes?
• APIPA addresses provide what kind of connectivity?
• Which protocol creates an unencrypted connection between two network devices?
• The TCP/IP application layer maps to OSI Application, Presentation, and Session layers.
• IPsec network traffic is always encrypted.
• The tracert command determines packet loss between a source and a destination.
• Which device connects Ethernet-based devices to the network in a wireless environment?
• What is the role of a default gateway in an IP network?
• What does a DNS A record map?
• Which service commonly uses TCP port 22?
• Which statement best describes the encryption layer and typical use cases for IPsec VPNs compared to SSL/TLS VPNs?
• A switch floods ports if it does not know where to send a packet.