2026 QUESTIONS WITH ANSWERS
GRADED A+
◍ IP Internetwork.
Answer: A network that uses IP addressing for identifying devices
connected to the network
◍ hot site.
Answer: full-blown operational facility with power, cooling, and equipment
racked and powered up and connected to the network; a duplicate of the
current data center
◍ Denial of Service (DoS).
Answer: The process of overloading a computer with messages and results
in suffocating the network resources.
◍ Network auditing software.
Answer: Monitors network behaviors such as the origin and volume of
traffic, looking for anomalies to proactively or reactively mitigate unwanted
occurrences.
◍ MTTR (mean time to recover or repair).
Answer: measures the average time it takes to bring a system back from
failure
◍ incident response policy.
Answer: 1. preparation2. identification3. containment4. eradication5.
recovery6. follow-up
◍ Secure Hash Algorithm.
Answer: SHA-1
,◍ Grid computing.
Answer: A type of distributed system that is more loosely coupled than
clusters but still works together as a system to complete large tasks.
Typically includes specialized software to make it easier to distribute the
workload and data among the machines
◍ differential backup.
Answer: includes all data that has changed since the last full backup
◍ SaaS (Software as a Service).
Answer: A service that focuses on application delivery
◍ Anycast Address.
Answer: An address obtained from a list of addresses
◍ campus network.
Answer: Interconnected LANs within a limited geographic area
◍ bus topology.
Answer: a system in which the computers share the media; includes coaxial
cable which is looped through each networking device to facilitate data
transfer
◍ MOU (memorandum of understanding).
Answer: a formal agreement between two or more parties to establish
official service partnerships;sometimes called letter of intent (LOI)
◍ IANA (Internet Assigned Numbers Authority).
Answer: the agency that assigns IP addresses
◍ host number (host address).
Answer: portion of an IP address that defines the location of a networking
device connected to the network
◍ Peer-to-peer (P2P).
Answer: Another model for interprocess communication. In this model,
processers both request and provide service to each other. Instant messaging
and interactive games played by users on multiple machines are both
, examples of _________
◍ RIRs (Regional Internet Registries).
Answer: IANA-designated governing organizations responsible for IP
address allocation by geographic location
◍ HTML.
Answer: A standardized system for tagging text files to achieve font, color,
graphic, and hyperlink effects on World Wide Web pages - focuses on
appearance.
◍ client-to-site VPN.
Answer: type of VPN that provides mobile users a way to remotely access
their information from the home network
◍ SMTP.
Answer: Simple Mail Transfer Protocol
◍ Class B (IPv4 address range).
Answer: 128.0.0.0-191.255.255.25516 network bits16 host bitsused for
midsized companies and universities
◍ SAN (storage area network).
Answer: a block-level data storage located across a network; a typical
enterprise storage solution
◍ mode field diameter.
Answer: The actual guided optical power distribution, which is typically a
micron or so larger than the core diameter; typically listed in single-mode
fiber specifications
◍ F/UTP.
Answer: Foil over twisted-pair cabling; provides better security, noise
immunity for EMI
◍ Dynamic VLAN.
Answer: A VLAN in which ports are assigned based on either the
computer's MAC address or the username of the client logged on to the
, computer
◍ SYN ACK.
Answer: Synchronizing acknowledgement packet
◍ SLA (Service Level Agreement).
Answer: a formal agreement typically between a service provider and a
client or end user that defines the level of service expected from the provider
◍ Coordinated Attack.
Answer: A type of distributed denial of service attack that is deliberate
toward a specific target and orchestrated by a controller source like the
command-and-control server in a botnet
◍ Inquiry Procedure.
Answer: Used to determine if other Bluetooth devices are available
◍ Spoof.
Answer: To insert a different IP address in place of an IP packet's source
address to make it appear that a packet came from another network
◍ EBS (excess burst size).
Answer: the burstable size allowed when the traffic is in the EIR mode
◍ physical layer.
Answer: layer 1 of the OSI model, which provides the electrical and
mechanical connection to the network
◍ vMotion, XenMotion, Live Migration.
Answer: Different vendor options for moving a designated host server in the
event of a physical server failure
◍ MEF (Metro Ethernet Forum).
Answer: A nonprofit organization that defines Metro/Carrier Ethernet
specifications
◍ Intermediate Cross-connect (IC; building distributor (BD)).
Answer: the building's connection point to the campus backbone, which
links the MC to the horizontal cross-connect (HC)