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Annex A: (DSAC-23) fully solved 2023
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VTC - correct answer Video Teleconferencing OSPF - correct answer Open Shortest Path First CUCM - correct answer Cisco Unified Communications Manager VoSIP - correct answer Voice over Secure Internet Protocol SVoIP - correct answer Secured Voice Over Internet Protocol SIP - correct answer Session Initiation Protocol SCCP - correct answer Skinny Client Control Protocol User Agent - correct answer Peers in a session that act as both server and client. Redirect Server - correct answer Entity where users can be registered GUI - correct answer Graphical User Interface IETF - correct answer Internet Engineering Task Force DES - correct answer Data Encryption Standard Automatically gives information to your phone. - correct answer Auto-Registration
BAT - correct answer Bulk Administration Tool DHCP - correct answer Dynamic Host Configuration Protocol TFTP - correct answer Trivial File Transfer Protocol Comma Separated Values - correct answer CSV CUCM Express - correct answer Cisco Unified Communications Manager Express SKL - correct answer Simple Key Loader CAS - correct answer Channel Associated Signaling CCS - correct answer Common Channel Signaling CIDR - correct answer Classless Inter-Domain Routing DTMF - correct answer Dual Tone Multi Frequency ISDN - correct answer Integrated Services Digital Network NANP - correct answer North American Numbering Plan NPA - correct answer Number Plan Area PBX - correct answer Private Branch Exchange POTS - correct answer Plain Old Telephone System
Catagory 3 (CAT-3) Cable - correct answer An unshielded twisted pair (UTP) cable that can carry data up to 10 Mbps. Catagory 5 (CAT-5) Cable - correct answer The maximum distance is 300 ft. Supports networks that are running 10-100Mbps at 100 MHz bandwidth. CAT-5e - correct answer Has a more strict twist ratio to improve performance and supports networks running 10-1000Mbps at 350 MHz bandwidth. STP (Shielded Twisted Pair) - correct answer Reduce interference (crosstalk) with other devices. UTP (Unshielded Twisted Pair) - correct answer Has less restrictive physical form and easier to install and maintain MIL-C - correct answer 26 pair telephone cable use to provide telephone services from the switchboards in the Marine Corps inventory. Fiber Optics - correct answer Cable that sends its signals down thin strands of glass or plastic. Single Mode Fiber - correct answer Has a small diametric core that allows only one mode of light to propagate. Multimode Fiber - correct answer Has a large diametric core that allows multiple modes of light to propagate. RS-530 (serial cable) - correct answer Used to connect and configure various types of telephone and networking equipment TIA - correct answer Telecommunications Industry Association
EIA - correct answer Electronic Industry Alliance When working with electronic equipment, it is imperative to take all safety precautions from - correct answer ESD (Electrostatic discharge) Gateway - correct answer The IP address of the host that enables access to the Internet or to other networks (entrance and exit point of a subnet) Network ID (network address) - correct answer The portion of an IP address common to all nodes on the same network or subnet. Also, the starting point in a network. Byte - correct answer 8 bits Nibble - correct answer 4 bits Binary - correct answer The binary number system is base 2, using only bits 0 and
Broadcast ID (Broadcast Address) - correct answer A special address in each subnet, specifically the largest numeric address in the subnet, designed so that packets sent to this address should be delivered to all hosts in that subnet. (the ending point of a network) Subnet - correct answer A subdivision of a network that is created either to conserve addresses or to support specific network requirements. H.323 - correct answer A VoIP standard that handles the initiation, setup, and delivery of VoIP sessions. (binary base for VoIP) ITU (International Telecommunication Union) Teleconferencing features Provides standards for equipment, computers and services for multimedia communication across packet based networks and specifies transmission protocols for real-time video, audio and data details.
analog telephone service implemented over copper twisted pair wires and based on the Bell Telephone system SVOIP - correct answer the physical phone is encrypted VoSIP - correct answer the nework is encrypted (no phone difference when compared to VoIP) UDP (User Datagram Protocol) - correct answer Protocol that operates instead of TCP in applications where delivery speed is important and quality can be sacrificed. TCP (Transmission Control Protocol) - correct answer provides reliable, ordered, and error-checked delivery of a stream of packets on the internet. is tightly linked with IP QoS (Quality of Service) - correct answer A set of parameters that controls the level of quality provided to different types of network traffic. (Not recommended for Marine Corps use, but if is going to be used, enable it with Trust DSCP posture) Cat 3 - correct answer a TIA/EIA standard for UTP wiring that can operate at up to 10 Mbps Two pairs of copper conductors:Blue and orange Max distance of 300ft Uses RJ-11 connectors What is CAT-5 and the function? - correct answer TIA/EIA standard for UTP wiring that can operate up to 100 megabits per second.
UTP and shielded twisted pair (STP) Four pairs of copper conductors:Orange, green, blue, and brown Max distance of 300ft Uses RJ-45 connectors CAT-5 Construction - correct answer TIA/EIA 568A: g-G-o-B-b-O-br-BR TIA/EIA 568B: o-O-g-B-b-G-br-BR OSI Model Layers - correct answer 1. Physical
- Data Link
- Network
- Transport
- Session
- Presentation
- Application IPv4 - correct answer The dominant protocol (a set of rules establishing how network devices should format, transmit and process information) for routing traffic on the Internet. IP address is a 32-bit binary number Dotted-decimal notation commonly utilized Trivial File Transfer Protocol (TFTP) - correct answer Transfers data
CoS (Class of Service) - correct answer Uses 3 - bits of the 802.1 Q tag to differentiate the traffic is a way of managing traffic in a network by grouping similar types of traffic (for example, e-mail, streaming video, voice, large document file transfer) together and treating each type as a class with its own level of service priority PSTN (Public Switched Telephone Network) - correct answer An international telephone system that carries analog voice data. Created by the International Communication Union (ITU) Based on E. Maximum of 15 digits PBX (private branch exchange) - correct answer A telephone switch used to connect and manage an organization's voice calls. It saves the cost of requiring a line for each user to the telephone company's central office. It includes telephone trunk lines that terminate at the PBX, a computer with memory that manages the switching of the calls within the PBX and in and out of it, the network lines within the PBX, and a console or switchboard for human operator. SIP (Session Initiation Protocol) - correct answer A set of Application layer signaling and control protocols for multiservice, packet-based networks. SIP is used to make an initial connection between hosts for transferring multimedia data. Uses a peer-to-peer protocol on TCP or UDP ports 5060/5061 that follows a client- server architecture Text-based protocol using a transport protocol SCCP (Skinny Client Control Protocol) - correct answer Proprietary (Cisco) network terminal control protocol
A lightweight IP-based protocol for session signaling with CUCM Uses RTP over UDP to pass traffic CUCM (Cisco Unified Communications Manager) - correct answer an IP-based communications system integrating voice, video, data, and mobility products and applications (extends enterprise telephony features and functions) 10.5 and newer versions used in Marine Corps CUCME (Cisco Unified Communications Manager Express) - correct answer Call- processing application in Cisco IOS software Enable routers deliver key-system functionality NANP (North American Numbering Plan) - correct answer It includes 25 countries and territories, including the United States, Canada, Bermuda, and 17 nations of the Caribbean. There are three-digit area codes and seven-digit telephone numbers. IPSec (Internet Protocol Security) - correct answer A Layer 3 protocol that defines encryption, authentication, and key management for TCP/IP transmissions an enhancement to IPv4 and is native to IPv unique among authentication methods in that it adds security information to the header of all IP packets DHCP (Dynamic Host Configuration Protocol) - correct answer A network service that provides automatic assignment of IP addresses and other TCP /IP configuration information.
2.) Transmitter: turns voice into electrical signals. -Diaphragm vibrates to move granules of carbon which allow electrical current to flow. The current flows over wires to its destination 3.) Receiver: reverses transmission process. -Turns electrical signals back into sound What is a trunk? - correct answer Communications line or link designed to carry multiple signals simultaneously to provide network access between two points. What is trunking? - correct answer A technique used in data communications transmission systems to provide many users with access to a network by sharing multiple lines or frequencies. Examples of this include telephone systems and the two-way radios commonly used by police agencies. Eight steps in the call making process - correct answer •Attending •Receiving •Controlling •Busy testing •Alerting •Connecting •Transmitting •Supervision ... - correct answer
