A ring SONET network can be _________.
A)
unidirectional
B)
bidirectional.
C)
either (a) or (b)
D)
neither (a) nor (b)

1 Answer

Answer :

bidirectional.

Related questions

Description : A linear SONET network can be __________. A) point-to-point B) multipoint C) either (a) or (b) D) neither (a) nor (b)

Last Answer : point-to-point

Description : Radio waves are _________. A) omnidirectional B) unidirectional C) bidirectional D) none of the above

Last Answer : omnidirectional

Description : ______ isa standard developed by ITU-T. A) SONET B) SDH C) either (a) or (b) D) neither (a) nor (b)

Last Answer : either (a) or (b)

Description : isa standard developed by ANSI for fiber-opticnetworks. A) SONET B) SDH C) either (a) or (b) D) neither (a) nor (b)

Last Answer : SDH

Description : Microwaves are_________. A) omnidirectional B) unidirectional C) bidirectional D) none of the above

Last Answer : unidirectional

Description : A parabolic dish antenna isa(n)_______ antenna. A) omnidirectional B) bidirectional C) unidirectional D) horn

Last Answer : unidirectiona

Description : SONET network topologies can be__________. A) linear B) ring C) mesh D) all of theabove

Last Answer : ring

Description : In IEEE 802.11, a BSS without an AP is called an _________. A) an ad hocarchitecture B) an infrastructurenetwork C) either (a) or (b) D) neither (a) nor (b)

Last Answer : an ad hocarchitecture

Description : A(n)_________ signal is a composite analogsignal with an infinite bandwidth. A) digital B) analog C) either (a)or (b) D) neither (a) nor (b

Last Answer : digital

Description : In IEEE 802.11, _______ isan optionalaccess method that can be implemented inan infrastructure network (not in an ad hocnetwork). A) DCF B) PCF C) either (a) or (b) D) neither (a) nor (b)

Last Answer : PCF

Description : The …………………... option tells netstat to display the status of all configured network interfaces. A. -n B. -i C. either a or b D. neither a nor b

Last Answer : B. -i

Description : A SONET system can use _________. A) STS multiplexers B) regenerators C) add/drop multiplexers D) all of theabove

Last Answer : add/drop multiplexers

Description : A vertical loop antenna has a A. unidirectional radiation pattern in the horizontal plane B. unidirectional radiation pattern in the vertical plane C. omnidirectional radiation pattern in the horizontal plane D. a bidirectional radiation pattern in the horizontal plane

Last Answer : D. a bidirectional radiation pattern in the horizontal plane

Description : What is the radiation characteristic of a dipole antenna? A. Omnidirectional B. Bidirectional C. Unidirectional D. Hemispherical

Last Answer : B. Bidirectional

Description : Discone radiation pattern is ______. A. omnidirectional/vertical polarized B. unidirectional C. bidirectional D. figure of eight

Last Answer : A. omnidirectional/vertical polarized

Description : Best description of a collinear and broadside antenna radiation pattern. A. Bidirectional B. Perfect circle C. Unidirectional D. Omnidirectional

Last Answer : A. Bidirectional

Description : Radiation characteristics of a dipole A. Figure of eight B. Omnidirectional C. Bidirectional D. Unidirectional

Last Answer : C. Bidirectional

Description : Radiation pattern of a discone. A. Unidirectional B. Bidirectional C. Omnidirectional D. Figure of eight

Last Answer : C. Omnidirectional

Description : In SONET, OC-1 stands for: a. Optical Carrier level one b. Optical Coupler unidirectional c. Optical Channel one d. Optical Cable type 1

Last Answer : a. Optical Carrier level one

Description : _________ does not provide reliable end to end communication. a. TCP b. UDP c. Both TCP and UDP d. Neither TCP nor UDP

Last Answer : b. UDP

Description : In IEEE 802.11, a BSS with an AP is sometimes referred toas ____________. A) an ad hocarchitecture B) an infrastructurenetwork C) either (a) or (b) D) neither (a) nor (b)

Last Answer : an infrastructurenetwork

Description : ________ is actually a multiport repeater. It is normally usedto createconnections between stations in a physical star topology. A) An activehub B) A passivehub C) either (a)or (b) D) neither (a) nor (b)

Last Answer : An activehub

Description : _______ ispart of the media; its location in the Internet model is below thephysical layer. A) An activehub B) A passivehub C) either (a)or (b) D) neither (a) nor (b)

Last Answer : A passivehub

Description : In astar-topology Ethernet LAN, _______ is just a point where the signals coming from different stations collide; it is thecollision point. A) An activehub B) A passivehub C) either (a)or (b) D) neither (a) nor (b)

Last Answer : A passivehub

Description : _________is just aconnector. A) An activehub B) A passive hub C) either (a)or (b) D) neither (a)nor (b)

Last Answer : A passive hub

Description : A backbone is usually a ______. A) bus B) star C) either (a)or (b) D) neither (a) nor (b)

Last Answer : either (a)or (b)

Description : Analog-to-analog conversionis needed if the available bandwidthis _______. A) low-pass B) band-pass C) either (a)or (b) D) neither (a) nor (b)

Last Answer : band-pass

Description : Signals can be ________. A) analog B) digital C) either (a)or (b) D) neither (a) nor (b)

Last Answer : either (a)or (b)

Description : SDH hasdefined ahierarchy of signals called ________. A) STSs B) STMs C) either (a) or (b) D) neither (a) nor (b)

Last Answer : STSs

Description : At the data link layer, Frame Relayusesa protocol that supports _____control. A) flow B) error C) either (a) or (b D) neither (a) nor (b)

Last Answer : neither (a) nor (b)

Description : In Frame Relay, when. ______ is selected, it requires establishing andterminatingphases A) a PVC B) an SVC C) either (a) or (b) D) neither (a) nor (b)

Last Answer : an SVC

Description : In Frame Relay, when a _____ is selected, the correspondingtable entry is recorded for all switches by the administrator A) PVC B) SVC C) either (a) or (b) D) neither (a) nor (b)

Last Answer : PVC

Description : Frame Relay provides ________. A) PVCs B) SVCs C) either (a) or (b) D) neither (a) nor (b)

Last Answer : Frame Relay

Description : Which of the following is NOT true about User Datagram Protocol in transport layer? a. Works well in unidirectional communication, suitable for broadcast information. b. It does three way ... File System d. The lack of retransmission delays makes it suitable for real-time applications

Last Answer : b. It does three way handshake before sending datagrams

Description : If a firm, or a network firm, has a direct financial interest in an audit client of the firm, the self-interest threat created would be so significant no safeguard could reduce the threat to an acceptable ... that the remaining interest is no longer material. c. Either a or b d. Neither a nor b

Last Answer : Dispose of the financial interest

Description : Each ________in a SONET framecancarry a digitized voice channel. A) bit B) byte C) frame D) none of the above

Last Answer : byte

Description : In SONET, for each byte, the bitsare transmitted ____________. A) from least significant to the most significant B) from most significant tothe least significant C) two at atime D) three at atime

Last Answer : from least significant to the most significant

Description : In SONET, for each frame, the bytes are transmitted __________. A) from left to the right, top to bottom B) from right to theleft, bottom to top C) from left to the right, bottom to top D) from right to the left, top to bottom

Last Answer : from left to the right, bottom to top

Description : To make SONET backward-compatible with the current hierarchy, its framedesign includes asystem of. A) OCs B) STMs C) STSs D) VTs

Last Answer : VTs

Description : In SONET each frame lasts _______ microseconds. A) 20 B) 64 C) 128 D) none of the above

Last Answer : 64

Description : SONET sends ________ frames per second A) 1000 B) 2000 C) 4000 D) 8000

Last Answer : 2000

Description : SONET is a _______ TDM system. A) asynchronous B) synchronous C) statistical D) none of the above

Last Answer : none of the above

Description : SONET defines _______ layers. A) two B) three C) four D) five

Last Answer : four

Description : In FDDI, data normally travel on .................. A) The primary ring B) The Secondary ring C) Both rings D) Neither ring

Last Answer : A) The primary ring

Description : The _______ is a unidirectional protocol that has no flow or error control. A. Simplest B. Simplex C. TCP/IP protocol D. Simplest or Simplex

Last Answer : D. Simplest or Simplex

Description : A data terminal serves as an a. Effector b. sensor c. both a and b d. neither a nor b

Last Answer : both a and b

Description : In__________, eachstation is forced to send only at the beginning of the time slot. A) pure ALOHA B) slotted ALOHA C) both (a) and (b) D) neither (a) nor (b)

Last Answer : slotted ALOHA

Description : Gigabit Ethernet access methods include _______ mode. A) half-duplex B) full-duplex C) both (a) and (b) D) neither (a) nor (b)

Last Answer : both (a) and (b)

Description : In___________ thereis alwaysa transition at the middle of the bit, but thebit values are determined at the beginningof the bit. If the nextbit is 0, there is a transition; if the next bit is 1, there is none. A) Manchester B) differential Manchester C) both (a) and (b) D) neither (a) nor (b)

Last Answer : differential Manchester

Description : In_______encoding, the duration of the bit is divided into twohalves. Thevoltage remains at one level during thefirst half and moves to the other level in the second half. The transition at the middle of the bit ... Manchester B) differential Manchester C) both (a) and (b) D) neither (a) nor (b)

Last Answer : both (a) and (b)