CT0-101 Convergence+ Certification Practice Exam Set 12

At which of the following layers of the OSI model can the transmission of packets be prioritized?



Options are :

  • Session layer
  • Data Link layer
  • Transport layer
  • Network layer

Answer : Network layer

CT0-101 Convergence+ Certification Practice Exam Set 10

Which of the following systems can support H. 323 and SIP based telephony? (Select TWO)

A. IP PBX

B. TDM PBX

C. Hybrid PBX

D. Legacy PBX

E. Key System



Options are :

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

Answer : A,C

Which of the following BEST represents the speeds that enterprise ethernet networks run?



Options are :

  • 10/100 Mbps
  • 100 Mbps
  • 10/100/1000/10000 Mbps
  • 10/100/1000 Mbps

Answer : 10/100/1000 Mbps

Which of the following trunk types supports wink start? (Select TWO)

A. Ground start

B. ISDN

C. T1

D. Analog

E. SIP



Options are :

  • D,E
  • B,C
  • C,D
  • A,B

Answer : C,D

CompTIA MB0-001 Mobility+ Certification Practice Exam Set 6

How many levels of prioritization does the 802.1p standard provide?



Options are :

  • 8
  • 7
  • 4
  • 2

Answer : 8

Which of the following BEST describes a Legacy PBX?



Options are :

  • Support for SIP endpoints
  • Open system with off the shelf operating system
  • Closed proprietary system
  • Connectivity to an IP network

Answer : Closed proprietary system

Which of the following types of applications is 'screen pop' commonly associated with?




Options are :

  • CTI
  • CCM
  • Call Detail Record (CDR)
  • Centralized Attendant Service (CAS)

Answer : CTI

CAS-001 CompTIA Advanced Security Practitioner Practice Exam Set 11

Which of the following would be the FIRST step a technician would take before deploying any

converged application?



Options are :

  • Upgrade all the Layer 2 switches to Layer 3 switches
  • Survey the users to get their feedback about VoIP
  • Ensure that the monitoring tools are in place
  • Perform a network capacity baseline and determine bottlenecks

Answer : Perform a network capacity baseline and determine bottlenecks

Which of the following is a video coding for low bit rate communication?



Options are :

  • H. 323
  • H. 320
  • H. 248
  • H. 263

Answer : H. 263

Which of the following features in ethernet switches eases the deployment of VoIP? (Select TWO)

A. Fiber connectivity

B. 802.1p prioritization

C. SNMP manageability

D. 802.1q VLAN tagging

E. Spanning Tree Protocol (STP)



Options are :

  • B,C
  • D,E
  • B,D
  • A,B

Answer : B,D

220-701 A+ Essentials Certification Practice Exam Set 7

Which of the following BEST describes Jitter?



Options are :

  • Jitter is a type of QoS that improves voice quality.
  • Jitter is a routing function that selects the best path for voice packets.
  • Jitter is an echo-cancelling mechanism.
  • Jitter is the variation of delay in the end-to-end transmission.

Answer : Jitter is the variation of delay in the end-to-end transmission.

The inability to dial certain numbers can be referred to as:



Options are :

  • number translation.
  • number routing.
  • number formatting.
  • number blocking.

Answer : number blocking.

At which of the following layers of the OSI model does a router operate?



Options are :

  • Session layer
  • Transport layer
  • Application layer
  • Network layer

Answer : Network layer

CompTIA HT0-201 DHTI+ Certification Practice Exam Set 5

Which of the following is the MOST prevalent wireless standard used?



Options are :

  • 802.1d
  • 802.3a/g
  • 802.1a/b/g
  • 802.11a/b/g

Answer : 802.11a/b/g

Which of the following is necessary for a branch office to continue to make calls in the event the

remote site loses WAN connectivity to the main site? (Select TWO)

A. Softphones

B. Local trunks

C. Attendant Console

D. Call processing engine

E. File Server



Options are :

  • B,C
  • D,E
  • A,B
  • B,D

Answer : B,D

A ground start line grounds:



Options are :

  • the ring for transmitting an immediate signal.
  • the tip first, then the ring for transmitting an immediate signal.
  • the tip for transmitting an immediate signal.
  • the ring first, then the tip for transmitting an immediate signal.

Answer : the tip for transmitting an immediate signal.

CompTIA N10-004 Network+ Certification Practice Test Set 6

The MOST common DiffServ value for VoIP is: 


Options are :

  • 46
  • 42
  • 40
  • 44

Answer : 40

Which of the following layers of the OSI model would a technician expect to use 802.1p as a

means for deploying prioritization on the LAN?




Options are :

  • Network layer
  • Data Link layer
  • Session layer
  • Application layer

Answer : Data Link layer

Which of the following transmission mediums is likely to have the highest round trip time?



Options are :

  • Cable
  • Ethernet
  • Satellite
  • DSL

Answer : Satellite

CL0-001 CompTIA Cloud Essentials Practice Test Set 1

Which of the following would be the MOST cost-effective means for a technician to provide good

quality voice on the same data network?



Options are :

  • Install an 802.3af compatible ethernet switch.
  • Ensure that all traffic flows through shared hubs.
  • Create an overlay network for voice traffic only.
  • Create separate 802.1q VLANs for voice traffic.

Answer : Create separate 802.1q VLANs for voice traffic.

Which of the following are symptoms that result directly from latency? (Select TWO)

A. An echo can be heard during the conversation

B. Packets can arrive out of order

C. Conversation volume would be low

D. Packet can be lost

E. Caller and receiver can unintentionally interrupt one another



Options are :

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

Answer : A,E

Which of the following protocols are used to carry and reassemble the voice payload across a

network?



Options are :

  • User Datagram Protocol (UDP)
  • TCP/IP
  • Real-time Transport Control Protocol (RTCP)
  • RTP

Answer : RTP

CompTIA CAS-002 Advanced Security Practitioner Certify Exam Set 5

Which of the following methods of transmission are BEST used to complete a video conference?



Options are :

  • WiFi
  • 56k dial up
  • tie-line
  • ISDN-BRI

Answer : ISDN-BRI

Which of the following Differentiated Services Code Point (DSCP) classes provide for low loss and

guaranteed delivery?



Options are :

  • Express Forwarding
  • Expedited Forwarding
  • Best Effort
  • Assured Forwarding

Answer : Assured Forwarding

Which of the following levels of packet loss is acceptable on an ethernet network in order to

ensure good quality voice?



Options are :

  • Zero percent
  • Between 5 and 15 percent
  • Less than one percent
  • Between 15 and 30 percent

Answer : Less than one percent

220-802 CompTIA A+ Certification Practice Exam Set 11

Which of the following codecs should be used when transporting on hold music across a limited

bandwidth WAN?



Options are :

  • G. 726
  • G. 729a
  • G. 722
  • G. 711

Answer : G. 726

When implementing a converged network, traffic shaping is important because it:



Options are :

  • changes a burst traffic pattern to a more uniform traffic pattern.
  • load balances the network servers.
  • decreases the load in response to the transmission.
  • maximizes the flow of data across a link in a forward direction.

Answer : changes a burst traffic pattern to a more uniform traffic pattern.

Which of the following is the MOST secure way of allowing VoIP communication to traverse a

firewall?



Options are :

  • Avoiding the firewall by placing the server in the Demilitarized Zone (DMZ)
  • Using the Port Address Translation (PAT) feature of the firewall
  • Using a session border controller in conjunction with the firewall
  • Using the Network Address Translation (NAT) feature of the firewall

Answer : Using a session border controller in conjunction with the firewall

CompTIA Security+ SY0-501 Exam Preparation (Latest Version) Set 2

Which of the following is the BEST means for deploying QoS for converged services in a LAN?



Options are :

  • Expanding Broadcasting Domain
  • Multi-Protocol Label Switching (MPLS)
  • DiffServ
  • Over-Provisioning

Answer : DiffServ

Which of the following layers of the OSI model does 802.1p operate?



Options are :

  • Transport layer
  • Data Link layer
  • Network layer
  • Application layer

Answer : Data Link layer

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