CCNA TERMS ACRONYMS EXAM QUESTIONS

PDF Download CCNA TERMS & ACRONYMS EXAM QUESTIONS Actual Qs and Ans Expert-Verified Explanation

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Question 1: Console Port

Answer:

A component of a router or switch through which commands are entered into a host.

Question 2: Layer 3 Protocol

Answer:

A protocol that it has characteristics like OSI Layer 3, which defines logical addressing and routing. IP, IPX, and AppleTalk DDP are all Layer 3 protocols.

Question 3: Authentication

Answer:

In security, the verification of the identity of a person or process.

Question 4: Broadcast Domain

Answer:

A set of all devices that receive broadcast frames originating from any device within the set. Devices in the same VLAN are in the same.

Question 5: SPF (Dijkstra Shortest Path First Algorithm)

Answer:

Magic math used by link-state protocols, such as OSPF, when the routing table is calculated.

Question 6: 10BASE-T

Answer:

The 10-Mbps baseband Ethernet specification using two pairs of twisted pair cabling (Categories 3, 4, or 5): One pair transmits data and the other receives data. Is part of the IEEE 802.3 specification and has a distance limit of approximately 100 m (328 feet) per segment.

Question 7: ICMP (Internet Control Message Protocol)

Answer:

A network layer Internet protocol that reports errors and provides other information relevant to IP packet processing. Documented in RFC 792.

Question 8: CPE (Customer Premises Equipment)

Answer:

Any equipment related to communications that is located at the customer site, as opposed to inside the telephone company's network.

Question 9: Interior Routing Protocol

Answer:

A routing protocol designed for use within a single organization. For example, an entire company might choose the IGRP routing protocol.

Question 10: CSMA/CD (Carrier sense multiple access collision detect)

Answer:

A media-access mechanism in which devices ready to transmit data first check the channel for a carrier.If no carrier is sensed for a specific period of time, a device can transmit. If two devices transmit at once, a collision occurs and is detected by all colliding devices. This collision subsequently delays retransmissions from those devices for some random length of time.

Question 11: ISO (International Organization for Standardization)

Answer:

An international organization that is responsible for a wide range of standards, including those relevant to networking. The ISO developed the OSI reference model, a popular networking reference model.

Question 12: FCIP (Fibre Channel over IP)

Answer:

A protocol for sending Fibre Channel protocols over an IP network.

Question 13: 802.1Q

Answer:

The IEEE standardized protocol for VLAN trunking.

Question 14: Auxiliary Port

Answer:

A physical connector on a router that is designed to be used to allow a remote terminal, or PC with a terminal emulator, to access a router using an analog modem.

Question 15: Frame Relay

Answer:

An industry-standard, switched data link layer protocol that handles multiple virtual circuits using LAPF encapsulation between connected devices. Frame Relay is more efficient than X.25, the protocol for which it generally is considered a replacement.

Question 16: Configuration Register

Answer:

In Cisco routers, a 16-bit, user-configurable value that determines how the router functions during initialization. In software, the bit position is set by specifying a hexadecimal value using configuration commands.

Question 17: PTT (Post, telephone, and telegraph)

Answer:

A government agency that provides telephone services. Exist in most areas outside of North America and provide both local and long-distance telephone services.

Question 18: OSI Model (Open System Interconnection Reference Model)

Answer:

A network architectural model developed by the ISO. The model consists of seven layers, each of which specifies particular network functions, such as addressing, flow control, error control, encapsulation, and reliable message transfer. Is used universally as a method for teaching and understanding network functionality.

Question 19: Host

Answer:

A computer system on a network. Similar to a node, except that host usually implies a computer system, whereas node generaly applies to a networked system, including access servers and routers.

Question 20: Codec (Coder-decoder)

Answer:

An integrated circuit device that transforms analog voice signals into a digital bit stream and then transforms digital signals back into analog voice signals.

Question 21: ISDN (Integrated Services Digital Network)

Answer:

A service offered by telephone companies that permits telephone networks to carry data, voice, and other source traffic.

Question 22: Frame

Answer:

A logical grouping of information sent as a data link layer unit over a transmission medium. Can also be called an L2PDU.

Question 23: IEEE 802.2

Answer:

An IEEE LAN protocol that specifies an implementation of the LLC sublayer of the data link layer.Handles errors, framing, flow control, and the network layer (Layer 3) service interface. Used in IEEE 802.3 and IEEE 802.5 LANs.

Question 24: Multimode

Answer:

A type of fiber-optic cabling with a larger core than single-mode cabling, allowing light to enter at multiple angles. Such cabling has lower bandwidth than singlemode fiber but requires a typically cheaper light source, such as an LED.

Question 25: PAP (Password Authentication Protocol)

Answer:

An authentication protocol that allows Point-to-Point Protocol (PPP) peers to authenticate one another.Unlike the Challenge Handshake Authentication Protocol (CHAP), this passes the password and the host name or username in the clear (unencrypted).