Missed

Question 1

DSL

Answer 1

xfer data over voice grade tele lines; rj-11

Question 2

cable modem

Answer 2

A cable modem is a device with RJ-45 ports that connect to the local network, while the coax port connects to the ISP network. Cable network based on the Data Over Cable Service Interface Specification (DOCSIS) supports downlink speeds of up to 38 Mbps in North America.

Question 3

voip pbx

Answer 3

core switch that controls all functions found in a voip system

Question 4

voip gateway

Answer 4

means of translating between voip system and legacy voice equip. and networks

Question 5

reverse proxy

Answer 5

Reverse proxies sit in front of servers and handle client requests before they reach the servers.
they act as intermediaries between clients and servers, receiving requests from clients and forwarding them to the appropriate servers.Clients are typically unaware of the presence of a reverse proxy. They send requests directly to the reverse proxy, which then forwards the requests to the backend servers on their behalf.

Question 6

forward proxy

Answer 6

Forward proxies sit between clients and the internet and handle outbound requests from clients to external servers.
They act on behalf of clients, forwarding their requests to the appropriate internet servers and caching responses for improved performance.

Question 7

voice gateway

Answer 7

A voice gateway is a means of translating between a VoIP system and legacy voice equipment and networks. This gateway can include an integrated VoIP PBX feature as well.

Question 8

legacy pbx

Answer 8

A legacy Private Branch Exchange (PBX) system is based on the traditional telephone network and provides switch services for analog voice.

Question 9

load balancer

Answer 9

A load balancer can switch traffic to alternative nodes, reduce bottlenecks, and allow for failover services. In this case, the network engineer redirects specific traffic to take advantage of available bandwidth.

Question 10

RIP

Answer 10

Routing Information Protocol (RIP) is a distance vector routing protocol. RIP only considers the next hop router to reach a given network or subnet (vector).

Question 11

ospf

Answer 11

Open Shortest Path First (OSPF) is a link state type of routing protocol ideal for hierarchical systems and networks. OSPF is suitable for organizations with multiple redundant paths between networks.

Question 12

EIGRP (cisco)

Answer 12

Enhanced Interior Gateway Routing Protocol (EIGRP) is a distance vector or hybrid routing protocol. It relies on neighboring routers to report paths to remote networks and uses a metric composed of administrator-weighted elements.

Question 13

link state

Answer 13

A link state algorithm allows a router to store the complete network topology and assess the least-cost paths from the topology database.

Question 14

Admin distance

Answer 14

Administrative distance (AD) is a metric used in routing protocols to determine the trustworthiness of routing information received from different sources. It is a numerical value assigned to each routing protocol or source, indicating its reliability or preference level

Question 15

T1 Line

Answer 15

Line provided by telecomms service provider that connects to a demarc point.

Question 16

MPLS

Question 17

emergency level

Question 18

RAG

Question 18

dynamic arp inspection

Question 19

802.1x

Question 19

802.1q

Answer 19

VLAN tagging

Question 19

802.1af

Answer 19

PoE 30w

Question 20

802.1d

Answer 20

STP

Question 21

AP functions

Answer 21

bridge,

Question 22

uplink port

Answer 22

enables 2 switches to be connected using straight through cable

Question 23

rto

Question 24

rpo

Answer 24

the amount of data loss that a system can sustain, measured in time.

Question 25

mtbf

Answer 25

total time(devices*hrs)/# of failures

Question 26

mttf

Answer 26

(devices*hrs) /# of devices

Question 27

RTO

Answer 27

the amount of time following a disaster that an individual IT system may remain offline.

Question 28

link-state

Answer 28

A link state algorithm allows a router to store the complete network topology and assess the least-cost paths from the topology database.

Question 29

distance vector

Answer 29

Distance vector protocols use the number of hops to the destination as the metric. The route with the fewest hops is the least-cost path, and the network will select it for use.

Question 30

static routes

Answer 30

Static routes configure as non-persistent or persistent/permanent. A non-persistent route gets removed from the routing table if the router reboots.