CT0-101 Convergence+ Certification Practice Exam Set 5

Which of the following are protocols for call server-gateway interactions in an H. 323 environment?

(Select THREE).

A. H. 248

B. RTCP

C. MGCP

D. MEGACO



Options are :

  • B,C,D
  • A,B,C
  • A,B,D
  • C,D,A

Answer : C,D,A

CompTIA Cloud Essentials Cert Exam Prep CL0-002 Set 2

The effects of jitter can be remedied in which of the following ways?



Options are :

  • Increase the buffer size in the endpoints.
  • Increase the sample time to compensate for jitter.
  • Change the codec to a non-compressed codec.
  • Enable 802.1q on the network.

Answer : Increase the buffer size in the endpoints.

A packets priority is modified by a router as it travels to its destination, due to the fact that the

packet has fallen behind its expected transit time. Which of the following terms would this be an

example of?



Options are :

  • Sliding Window
  • Isarithmic congestion control
  • Jitter control
  • Multiplexing

Answer : Jitter control

A remote office with four SIP IP users is connected via a symmetrical 384kpbs connection to the

corporate IP communication system. The IP endpoints support G. 711 only and experience

choppy voice when all users are on the phone. Which of the following could be done to fix this

problem using the existing phones? (Select TWO).

A. Decrease the sample period from 30ms to 10ms

B. Decrease the jitter buffer from 100ms to 50ms

C. Enable silence suppression

D. Increase the sample period from 10ms to 30ms

E. Switch the codecs to G. 729 compression



Options are :

  • D,E
  • C,D
  • B,C
  • A,B

Answer : C,D

CompTIA CySA+ Set 5

Which of the following is an acceptable packet loss in a VoIP network assessment test to maintain

TOLL quality voice service?



Options are :

  • Less than or equal to 3 percent
  • Equal to zero percent
  • Less than or equal to one percent
  • Less than or equal to 4 percent

Answer : Less than or equal to one percent

Which of the following transport layer protocol is used for audio transmission in a SIP call?



Options are :

  • TCP
  • IPX
  • UDP
  • RTP

Answer : UDP

According to ITU, which of the following is the maximum acceptable one-way delay in a VoIP

network?



Options are :

  • 250ms
  • 400ms
  • 150ms
  • 100ms

Answer : 150ms

CompTIA CT0-101 Convergence+ Certification Practice Exam Set 2

Which of the following codec is the BEST choice for a customer that has the following

requirements listed in order of importance: minimize bandwidth usage, a mean opinion score

(MOS) of at least four, and minimized delays?




Options are :

  • 722
  • 711
  • 729
  • 723

Answer : 729

Which of the following would a company use to bill users for the use of the telephony system?



Options are :

  • RMON
  • RSVP
  • CDR
  • Trace route

Answer : CDR

An agent, in a SIP Contact Center environment, is helping a customer and needs to deliver an

answer on a complex matter right away. The agent needs to contact an expert that is available

online using dial-up, to get the answer to the customer. Which of the following technologies could

be utilized? (Select TWO).

A. Video Conference

B. Paging system

C. Instant Messaging

D. Fax over IP

E. Presence



Options are :

  • B,C
  • C,E
  • A,B
  • C,D

Answer : C,E

SY0-401 CompTIA Security+ Certification Practice Exam Set 1

Which of the following is connected to a telephone switch and issues commands to the switch

telling it to move calls around?



Options are :

  • Call routing server
  • Signaling server
  • CTI server
  • SIP server

Answer : CTI server

Which of the following is a method for mapping phone numbers to IP addresses?



Options are :

  • SNMP
  • ENUM
  • DHCP
  • RTCP

Answer : ENUM

Which of the following audio codec would a technician use to save bandwidth on a video call?



Options are :

  • G. 723
  • G. 711
  • H. 320
  • T.120

Answer : G. 723

CompTIA JK0-022 E2C Security+ Network Security Practice Exam Set 5

Which of the following statements BEST describes SRTP?



Options are :

  • SRTP provides security for the media channels and uses the RC4 algorithm for encryption.
  • SRTP provides security for the media channels and uses the AES algorithm for encryption.
  • SRTP provides security for the media channels at the physical layer of the OSI model.
  • SRTP provides security for the media channels at the application layer of the OSI model.

Answer : SRTP provides security for the media channels and uses the AES algorithm for encryption.

Which of the following elements will off load the Contact Center of calls that do not need to be

answered by a live agent?



Options are :

  • Interactive voice response (IVR)
  • Outbound dialer
  • Customer Relationship Management (CRM)
  • Call Recording

Answer : Interactive voice response (IVR)

Which of the following is the minimum LAN cabling standard that supports 802.3af?



Options are :

  • CAT4
  • CAT3
  • CAT6
  • CAT5

Answer : CAT3

220-701 A+ Essentials Certification Practice Exam Set 10

A company is expanding into a building located 30 yards (27.4 meters) away. The existing building

is

utilizing a hybrid IP/digital telephony system using both digital and IP phones, and has a

1000Mbps IP network. The new building has an existing 10/100 Mbps IP network with no phones.

Which of the following solutions will BEST integrate the two buildings?



Options are :

  • Connect the buildings using a fiber backbone, and upgrade the 10/100 Mbps switches to 1000 Mbps in the new location.
  • Connect the buildings using an analog trunk, and deploy both Digital and IP phones in the new location.
  • Connect the buildings using a fiber backbone, and deploy IP telephones in the new location.
  • Connect the buildings using a fiber backbone, and deploy the same type of digital phones in the new location.

Answer : Connect the buildings using a fiber backbone, and deploy IP telephones in the new location.

A customer wants to convert a branch with one hundred analog users and a local analog PBX to

IP for

centralized SIP call control. The branch is adequately connected with a T1 to headquarters for

centralized trunking. The users will use G. 711 based IP phones connected via a local LAN. Which

of the following BEST meets the requirements for converting to a VoIP system?



Options are :

  • A fractional T1 with an additional 12 channels needs to be added to support the IP overhead.
  • A fractional T1 with one additional channel needs to be added to support the IP overhead.
  • The existing T1 is sufficient for providing centralized trunking and call control.
  • An additional T1 needs to be added to support the IP overhead.

Answer : A fractional T1 with an additional 12 channels needs to be added to support the IP overhead.

Which of the following audio codecs uses the lowest bitrate?



Options are :

  • G. 726
  • G. 722
  • G. 729
  • G. 723

Answer : G. 723

CA1-001 CompTIA Advanced Security Practitioner Practice Exam Set 6

Which of the following Mean Opinion Scores (MOS) represents TOLL quality voice?



Options are :

  • 2.0
  • 5.0
  • 4.0
  • 9.9

Answer : 4.0

Which of the following protocols would be used to manage/monitor layer 2 parameters in an IP

Phone?



Options are :

  • HTTP
  • PING
  • SNMP
  • RMON

Answer : SNMP

Which of the following transmission mediums would have the MOST latency in a network?



Options are :

  • Cable
  • DSL
  • Satellite
  • Wireless

Answer : Satellite

CompTIA CySA+ (CS0-001) 5 Practice Certification Exams Set 2

How many bits of the type of service (TOS) octet are taken by IP precedence field?



Options are :

  • 2
  • 5
  • 4
  • 3

Answer : 3

Which of the following protocols are at the network layer of the OSI model? (Select TWO).

A. Point to Point Protocol (PPP)

B. Internet Protocol (IP)

C. Q.921

D. Address Resolution Protocol (ARP)



Options are :

  • A,B
  • C,D
  • B,C
  • B,D

Answer : B,D

Which of the following technologies allows multiple devices to share one IP address?



Options are :

  • Dynamic Host Configuration Protocol (DHCP)
  • Network Address Translation (NAT)
  • Virtual Private Network (VPN)
  • Port Address Translation (PAT)

Answer : Network Address Translation (NAT)

CompTIA JK0-017 E2C Project+ Certification Practice Exam Set 10

Which of the following devices controls a call on a H. 323 VoIP network?



Options are :

  • Router
  • IP terminal
  • Gateway
  • Gatekeeper

Answer : Gatekeeper

Which of the following audio codec would a technician use to save bandwidth on a video call?



Options are :

  • G. 711
  • H. 320
  • 723
  • T.120

Answer : 723

Which of the following needs to be considered for a new voice mail system?



Options are :

  • Number of Public Switched Telephone Network (PSTN) trunks, analog and digital extensions in the PBX
  • Number of mailboxes
  • Number of concurrent users accessing the voice mail application at a time
  • Number of IP stations in the system

Answer : Number of concurrent users accessing the voice mail application at a time

CompTIA JK0-022 E2C Security+ Threats & Vulnerabilities Exam Set 3

Which of the following models would allow a technician to estimate trunk load requirements?



Options are :

  • Erlang
  • Five - Nines
  • Predictive dialing
  • Pooling principle

Answer : Erlang

When should a company consider switching from IPv4 to IPv6?



Options are :

  • When the performance on the current IPv4 network is not adequate
  • When all the network equipment and IP devices support IPv6
  • When large numbers of external IP devices are to be added to the current IPv4 network
  • When private IPv4 address space is exhausted

Answer : When large numbers of external IP devices are to be added to the current IPv4 network

Comment / Suggestion Section
Point our Mistakes and Post Your Suggestions