NCTI Field Tech V to VI Practice Exam

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• For Carrier Ethernet, why is tagging packets alone not adequate for bandwidth management?
• Which protocol is commonly associated with secure email transfer?
• What is the refractive index in fiber optics?
• Which address typically represents the gateway in a network?
• How many layers are defined in the OSI model?
• In telecommunications, what does QoS stand for?
• How does a firewall protect a network?
• How can technicians ensure the security of wireless networks?
• What is the function of an access point in a wireless network?
• In Synchronous Optical Networks (SONET), how much faster is the data rate of an electrical level STS-192 compared to an STS-1?
• According to the National Electric Code (NEC) article 800-179, which cable marking indicates that a cable is riser-rated?
• The mapping of labels in a Multi-protocol label switching (MPLS) network domain is maintained by which of the following?
• What is the purpose of a cable tester?
• What is the purpose of the OSI model in networking?
• What is the purpose of a Time Domain Reflectometer (TDR)?
• In the context of Wi-Fi, what does DFS stand for?
• Asynchronous transfer mode (ATM) can be transported over multi-protocol label switching (MPLS) networks. What must ATM do that MPLS does not?
• Which of the following decimal to CIDR notations is not valid?
• What is the role of a proxy server?
• Which Wi-Fi transmitting device has the highest likelihood to support DFS channels?
• What role does a modem play in a network?
• What type of information is crucial to include in a problem statement?
• What is the purpose of network mapping?
• Which signal type is most commonly associated with DSL technology?
• What is the best way to gather information for a clear problem statement?
• What does the term ‘ping sweep’ refer to?
• What is the role of DHCP in a network?
• What is a network protocol?
• In the context of networking, what does 'troubleshooting' mean?
• Which characteristic is associated with a connectionless protocol like UDP?
• What special band, in the 5 GHz band, is located on channel 165?
• In static IP configuration, which setting is typically missing from the provided list of settings?
• Which metric is essential for assessing the health of a network connection in troubleshooting?
• What does VLAN stand for and what is its primary function?
• What is the role of an RADIUS server?
• What is the step in the troubleshooting process that identifies the cause of a problem?
• Multi-protocol label switching (MPLS) has a fast-reroute feature. How quickly can MPLS recover a connection after a loss of connectivity?
• What is a primary role of DNS in networking?
• What does electrical interference from wiring or electric motors cause on telephone wiring?
• What is a 'mesh network'?
• According to the Telecommunication Standardization Sector (ITU-T), what is a next generation network (NGN)?
• What is the function of a VPN?
• What protocol allows for the separation of Internet Protocol (IP) addresses from the location function of the IP address in a virtual private network (VPN)?
• In telecommunications, what does DSL stand for?
• What is the primary threat of a DDoS attack?
• In a network, what does the term 'latency' refer to?
• What role does a multiplexer serve in telecommunications?
• Internet Group Management Protocol (IGMP) operates over which protocol?
• What is a 'network sniffer' used for?
• Which of the following is NOT a common type of network topology?
• Ethernet over Multi-protocol label switching (EoMPLS) is a tunneling service that transports what type of frames over an MPLS network?
• What does latency refer to in a network?
• What does DHCP stand for in networking?
• How is 'attenuation' defined in relation to signal strength?
• How do TCP and UDP differ in terms of data transmission?
• What does the term 'bandwidth' refer to in telecommunications?
• What address class does Tom's IP address 192.10.10.10 belong to?
• Which cable type is designed specifically for smoke reduction in buildings?
• What is the role of DNS in a network?
• What is the purpose of a firewall?
• How can network performance be enhanced through Quality of Service (QoS)?
• Which type of internet protocol addressing is best suited for dedicated services like hosting websites or email?
• What type of network topology connects all devices to a central hub?
• For any digital subscriber line (DSL) version, what does the connection speed depend on?
• What is the decimal equivalent of the binary number 00111001?
• What is the primary role of a network firewall?
• Which protocol is characterized by having four numeric fields each 8 bits long, known as octets?
• What networking function is typically performed by a Default Gateway?
• Which address does Open Shortest Path First (OSPF) use to multicast changes in the routing tables?
• In networking, what does VPN stand for?
• What is the main responsibility of a network administrator?
• How is 'throughput' defined in terms of network performance?
• What does 'remote access' refer to?
• What does the acronym IP stand for in network communications?
• In a Multi-protocol label switching (MPLS) network, which component is responsible for pushing an MPLS label onto the front of an incoming Internet Protocol (IP) packet?
• What role does an SSL certificate play?
• If the Internet protocol (IP) address 192.168.100.0 names the network, what kind of address is 192.168.100.255 for that same network?
• What can notify Simple Network Management Protocol (SNMP) network management stations of multicast problems?
• What is the significance of port numbers in networking?
• What is 'network segmentation' in the context of computer networks?
• When connecting a local area network (LAN) to another LAN, which statement is typically true?
• What is a key difference between IPv4 and IPv6?
• What should be your first action after identifying an issue with a digital terminal adapter (DTA)?
• What is the bit size of an IPv4 address?
• What credential server do WPA or WPA2 encrypted APs use to compare credentials prior to allowing a user to authenticate to a network?
• What does ‘data encapsulation’ mean in networking?
• What is the primary purpose of an 'intranet'?
• In networking, what does BGP stand for?
• What does 'IP masquerading' involve?
• What is the primary purpose of dynamic routing?
• What protocol is commonly used for email transmission?
• Which characteristic is notable about T1 lines?
• What does the acronym SSL signify in internet security?
• What does data link layer in the OSI model primarily handle?
• What is the purpose of a subnet mask?
• In networking, what does the term 'bandwidth' refer to?
• Which of the following is NOT a layer of the OSI model?
• What is the primary purpose of the Border Gateway Protocol (BGP)?
• What network element does a 'star' topology center around?
• What is the difference between symmetrical and asymmetrical broadband?
• Which of the following best defines 'QoS'?
• How is data typically encoded for transmission over networks?
• In mesh networking, how are devices connected?
• Which strategy is most effective when determining the functionality of installed equipment?
• What does 'QoS' stand for, and why is it important in networking?
• Which protocol uses a numerical address structure known as octets?
• What is the main benefit of using a VPN?
• What is the primary function of a switch in a networking context?
• What does path MTU discovery help determine?
• Which infrared (IR) sensor is considered best for a set-back box (SBB) due to its low cost and discreet appearance?
• Which two layers of the OSI model are combined in the TCP/IP model's Network Access Layer?
• What is a good practice to use when installing an AP in a hospital room or dormitory where people sleep?
• What is the classful netmask assigned to Emily's laptop, which uses IP address 192.10.10.10 at work?
• Which is the oldest packet switching technology still in widespread use globally?
• What is the first thing to check when telephones within the business have no dial tone and the EMTA is powered up?
• How many non-overlapping channels are in the 5 GHz band?
• What type of signal does a fiber optic cable transmit?
• What is meant by network resilience?
• What does the term 'loopback' refer to in networking?
• Which device is primarily used to connect multiple networks together?
• What is one effect of network segmentation?
• What type of delay is associated with signal propagation?
• What application Layer protocol can allow Frances's private IP address to connect to a public server?
• What telephone wiring condition is characterized by one or more telephones not working because one or both conductors have been cut?
• What type of network topology connects all devices in a straightforward manner?
• Which characteristic distinguishes Transmission Control Protocol (TCP) from User Datagram Protocol (UDP)?
• Which of the following is a key focus area in the NCTI exam?
• Why is a modem important in data transmission?
• What type of network does a WAN cover?
• Which cable type is preferable for long-distance data transmission?
• What is the name of a small network that is private to an organization and connects devices like computers and printers?
• What is the standard frequency for 802.11g Wi-Fi?
• Which component is essential for a broadband internet connection?
• What is the function of an IP address?
• What is the purpose of a packet sniffer in network analysis?
• Which technology is used for wireless communication over short distances?
• Multi-protocol label switching (MPLS)-compatible network routers utilize label tags instead of which other element of a data packet?
• What is the function of DHCP in a network?
• If Paula uses a subnet mask of 255.255.255.128, how many addresses will each subnet have?
• Which method allows a gateway router or firewall to act as an address converter between public and private IP addresses?
• Why would a reverse output pad be removed from a line amplifier while troubleshooting?
• When implementing a dual-band router, what is a primary benefit of utilizing both bands?
• Which protocol is commonly used for secure data transmission over the Internet?
• What does 'Wi-Fi 6' refer to?
• Which feature helps in managing interference in a wireless network?
• What is the significance of signal-to-noise ratio (SNR) in telecommunications?
• What type of unshielded twisted-pair (UTP) cable is designed to minimize fire risk and reduce toxic fumes?
• In telecommunications, what is the role of a base station?
• What is the function of ephemeral port numbers?
• What is the main responsibility of a router in a computer network?
• Which layer of the OSI model is responsible for switching and routing?
• What is DNS and its primary function?
• What is the purpose of network diagnostics?
• What does 'network latency' refer to?
• Which type of address does IPv6 utilize to allow for more available IPs?
• Which unshielded twisted-pair (UTP) category supports data rates up to 10 gigabits per second (Gbps)?
• Which protocol operates at Layer 7 of the OSI model?
• What is an advantage of using IPv6 over IPv4?
• Which tool is used to measure the strength of a signal?
• Which of these options characterizes Class C addresses?
• What is the mandatory label in the label stack of the header in time-division multiplexing over the Internet Protocol (TDMoIP)?
• What is the purpose of the tracert command in network diagnostics?
• Which attribute is unique to User Datagram Protocol (UDP)?
• When employing a customer’s IT staff for troubleshooting, what is the main benefit?
• Which of the following is a validly formed fully qualified domain name (FQDN)?
• Which command line entry is commonly used to test latency and packet loss?
• What communication technique utilizes microwave frequencies?
• What security protocol is used in Wi-Fi Protected Access 2?
• What is a VPN primarily used for?
• Which protocol is primarily used for secure communication over the internet?
• Which layer of the OSI model is responsible for end-to-end communication?
• What does DNS stand for in networking?
• What does NCTI stand for?
• What does 'throughput' refer to in networking?
• Once distribution trees are built using the Protocol Independent Multicast (PIM) protocol, what occurs next?
• What should be verified when troubleshooting a missing channel issue on a media distribution gateway?
• What device is commonly used to connect cable modems to computers?
• Which subnet mask will Paula use to divide her 192.168.100.0 network into two smaller networks?
• When troubleshooting a single set-back box (SBB) or digital terminal adapter (DTA), what is the first step?
• What does NAT stand for and what is its function?
• Which of the following is a common use of a firewall?
• What does 'Redundancy' mean in networking?
• What does the term 'network topology' refer to?
• In troubleshooting, what is a 'ping test' used for?
• What is the result of 5 GHz wavelengths being shorter than 2.4 GHz wavelengths?
• What technology is used for wireless networking?
• What is the purpose of the Quadrature Amplitude Modulation (QAM) to Analog (Q2A) media distribution gateway?
• Which of the following fields is not part of the IP packet header?
• Which network type does the Intermediate System to Intermediate System (IS-IS) protocol support?
• What plays a critical role in determining the overall quality of an internet service?
• What does the abbreviation VLAN stand for?
• What is the function of a proxy server in a network?
• Which layer of the OSI model does HTTP operate on?
• Which concept has enabled Software as a Service (SaaS), Platform as a Service (PaaS), and Networking as a Service (NaaS) offerings?
• What is the primary function of a modem in a network?
• What does a network analyzer primarily do?
• What is the goal of load testing in network performance?
• What is an international standard for a high-speed, connection-oriented, cell switching technology?
• What is a common effect of co-channel interference between access points?
• What is the significance of the IP address 192.168.1.1?
• Which color represents the telephone demarcation point in a commercial building according to the ANSI/TIA/EIA-606 color coding guidelines?
• What should you always do when working with old telephone wiring?
• What is the primary focus of the Field Tech V to VI exam?
• What is the primary purpose of a 66-block?
• Which frequency band typically provides better range indoors?
• What best describes a connection-oriented protocol like TCP?
• Why is it important that a channel plan ensures no two adjacent access points are on the same channel?
• What does an Ethernet frame include?
• What information should be confirmed with the customer when porting telephone numbers?
• How does 'load balancing' benefit a network?
• What does the term “routing table” refer to?
• What type of data connection does VoIP use?
• Which device is primarily used to connect multiple devices on the same local network?
• What device is essential for connecting a non-integrated services digital networks (ISDN) device to an ISDN network?
• What does network security entail?
• What type of network is considered private when using the IP address range 192.168.x.x?
• What is the primary function of a router in a network?
• What is the minimum accepted input signal strength per digital channel on a media distribution gateway?
• What feature allows you to change the access code to enter the installer menu on a commercial TV?
• What is SNMP used for in network management?
• What does network documentation provide?
• What is typically required when working on a voice installation with a private branch exchange (PBX) system?
• Which protocol is known for transferring large files over the Internet?
• What is the primary difference between static and dynamic IP addressing?
• How can technicians check if a client device is receiving an IP address correctly?
• What is the primary purpose of the NCTI Field Tech V to VI Practice Exam?
• Which device handles the translation between internal IP addresses and external IP addresses in a network?
• What is an essential step when troubleshooting connectivity issues?
• What network topology features a central hub?
• Which standard must be met for IP address assignments in a static configuration?
• What kind of troubleshooting methods should be prioritized for commercial properties?
• What is 'interference' in wireless communications?
• How is 'packet switching' defined?
• What does network congestion signify?
• What is the purpose of network segmentation?
• Who should you leverage for support when troubleshooting within a commercial property?
• Which network connection has a relatively high cost, billed on a per port charge and per mile for the length of the circuit?
• What does 'signal propagation delay' indicate?
• What does bandwidth throttling involve?
• What is the typical maximum distance for a standard Ethernet cable?
• What does an Access Point (AP) do?
• Which of the following is a unique address assigned to hardware devices such as modems and network interface cards?
• What does the term 'latency' refer to in networking?
• What does NAT stand for in networking?
• What is 'load balancing' used for in networking?
• What is the difference between symmetric and asymmetric bandwidth?
• What can be done when APs share the same channel and are contending for airtime, thus slowing down the network?
• Which two bands, in the 5 GHz band, are home to the DFS channels?
• Which two header components are used in ATM virtual circuits (VC) to switch cells across networks?
• Which technology employs fixed-sized cells for transporting data?
• What does the acronym CDN stand for in content delivery?
• Which component filters out a range of frequencies from an incoming signal?
• What consideration could one make if a deployed network has good 2.4 GHz coverage with lackluster 5 GHz coverage?