Acronyms

Question 1

MTU

Answer 1

Maximum transmission unit

Question 2

PDU

Answer 2

Protocol Data Unit

Question 3

ICMP

Answer 3

Internet Control Message Protocol

Question 4

IGMP

Answer 4

Internet Group Management Protocol

Question 5

NTP

Answer 5

Network Time Protocol

Question 6

NNTP

Answer 6

Network News Transfer Protocol

Question 7

WDM

Answer 7

Wavelength Division Multiplexing

Question 8

NEXT

Answer 8

Near end cross talk

Question 9

FEXT

Answer 9

Far end cross talk

Question 10

ORL

Answer 10

Optical return loss
amount of light reflected back to the optical source an dis expressed as a ratio of the power of the outgoing signal to the power of the reflected signal

Question 11

PC

Answer 11

Physical Contact

Question 12

SPC

Answer 12

Super physical contact (fiber end)

Question 13

UPC

Answer 13

Ultra physical contact

Question 14

APC

Answer 14

angled physical contact

Question 15

GBIC

Answer 15

gigabit interface converter
hot-pluggable optical transceiver that converts serial electric signals to optical ones

Question 16

SFP

Answer 16

small form-factor pluggable module
hot-pluggable network interface module

Question 17

OTDR

Answer 17

optical time domain reflector

Question 18

QSFP

Answer 18

quad small form-factor pluggable

Question 19

RARP

Answer 19

reverse address resolution protocol

Question 20

FLSM

Answer 20

Fixed-Length Subnet Mask

Question 21

VLSM

Answer 21

Variable-length Subnet Mask

Question 22

LACP

Answer 22

link aggregation protocol - combines multiple physical ports into one logical one

Question 23

CSMA/CA

Answer 23

Carrier Sense Multiple Access with Collision Avoidance

Question 24

MIB

Answer 24

Management Information Base - manages all entities on a network using SNMP

Question 25

DWDM

Answer 25

Dense wavelength-division multiplexing an optical fiber multiplexing technology that is used to increase the bandwidth of existing fiber networks