CT0-101 Convergence+ Certification Practice Exam Set 7

Which of the following is true about jitter?



Options are :

  • Jitter can only be solved by using prioritization techniques.
  • itter is caused by endpoints.
  • Jitter is the variation in time between thearrival of voice packets.
  • Jitter is caused by insufficient network capacity.

Answer : Jitter is the variation in time between thearrival of voice packets.

CompTIA A+ 220 901

The mapping of internet service addresses to E. 164 numbering is addressed by: 


Options are :

  • ENUM.
  • SS7.
  • SNMP.
  • CDR.

Answer : ENUM.

Which of the following are enhancements that SNMP v3 provides over previous versions? (Select TWO) 

A. Authentication

B. Peer-to-peer support

C. Privacy

D. Multi-vendor MIBs



Options are :

  • A,C
  • B,C
  • A,B
  • C,D

Answer : A,C

Which of the following must take place in order for a digital phone to communicate with an IP

phone?



Options are :

  • A dial plan must be established to identify the IP phone to the system.
  • The dial plan must connect the digital phone to the IP bus.
  • The phone system will have to convert the voice from TDM to IP.
  • The IP phone will have to convert the voice from IP to TDM.

Answer : The phone system will have to convert the voice from TDM to IP.

JK0-019 CompTIA E2C Network + Certification Exam Set 5

Which of the following BEST describes the ability for a user to consistently access multiple message types through a single user interface? 


Options are :

  • Unified Messaging
  • Computer Telephony integration
  • Telephone User Interface
  • Voice and Text Integration

Answer : Unified Messaging

Which of the following needs to be completed prior to setting up a single WAN link between two

sites that will carry voice and data?



Options are :

  • Traffic studies on the number of analog trunks used at peak hours.
  • Traffic studies to determine the bandwidth need for the voice and data traffic during peak hours.
  • Traffic studies to determine the number of IP trunks used per day.
  • Traffic studies to determine when the traffic will be sent across the WAN during non-peak hours.

Answer : Traffic studies to determine the bandwidth need for the voice and data traffic during peak hours.

Which of the following devices has to be connected to every user of an H. 323 conference?


Options are :

  • Terminal
  • Media Gateway Controller
  • Gatekeeper
  • Multipoint Control Unit (MCU)

Answer : Multipoint Control Unit (MCU)

CompTIA Security+ Cert. (SY0-501): Practice Tests 2019 Set 4

Which of the following is the basic process by which an analog signal is converted to digital signal?   


Options are :

  • The analog signal is periodically sampled and changed to a number of pulses, which are counted and sent as digital numbers.
  • The analog signal produces sound pressure, which is measured by an A/D converter and transmitted in digital form.
  • The digital receiver detects high and low analog sound levels and uses these levels to recreate new digital signals
  • The analog signal is processed by a digital transmitter which strips any distortion from the signal and retransmits the signals to digital receiver.

Answer : The analog signal is periodically sampled and changed to a number of pulses, which are counted and sent as digital numbers.

According to the H. 323 standard, which of the following is a function of a gateway device? 


Options are :

  • Provide security to H. 323 systems
  • Register IP endpoints
  • Prevent Toll Fraud to the Public Switched Telephone Network (PSTN).
  • Interconnect H. 323 systems to other systems

Answer : Interconnect H. 323 systems to other systems

Which of the following occurs at layer 3 of the OSI model, and is used for prioritization? 


Options are :

  • DiffServ
  • Real Time Control Protocol (RTCP)
  • User Datagram Protocol (UDP)
  • 802.1p

Answer : DiffServ

FC0-U41 CompTIA Strata IT Fundamentals Practice Exam Set 5

Which of the following is used to describe layers one - three of the OSI model, and is responsible for connectivity? 


Options are :

  • Chained layers
  • Session layers
  • End-to-end layers
  • Network layers

Answer : Chained layers

DiffServ can be used to:



Options are :

  • mark traffic going to the Public Switched Telephone Network (PSTN).
  • specify traffic types for prioritization.
  • specify voice and video traffic only.
  • create access tables to deny traffic.

Answer : specify traffic types for prioritization.

Which are the following are the reasons why the wire pairs in CAT5 cables are twisted? (Select TWO).

A. Twisting eliminates electric interference from adjacent wires.

B. Twisting distributes electric interference evenly to both wires.

C. Twisting provides additional tensile strength to the cable.

D. Twisting eliminates cross-talk between adjacent pairs.

E. Twisting minimizes the contact area of adjacent wires to sources of interference. 


Options are :

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

Answer : B,D

Comptia A+ (220-801) Certification Exam Practice Test Set 1

Once a company starts planning to use VoIP the company should: (Select TWO).

  A. replace the LAN infrastructure.

B. implement a backup system.

C. prepare for an increase in call charges.

D. review the bandwidth in each link.

E. monitor service levels and measure response times.



Options are :

  • C,D
  • A,B
  • B,C
  • D,E

Answer : D,E

Which of the following are used to prioritize traffic across a WAN IP network?



Options are :

  • BGP
  • RIP
  • DiffServ
  • OSPF

Answer : DiffServ

How many channels are available for use on a T1 E+M wink circuit? 


Options are :

  • 24
  • 28
  • 32
  • 23

Answer : 24

CompTIA Advanced Security Practitioner(CASP+) Practice Exams Set 3

The converged system connects to the Public Switched Telephone Network (PSTN) via analog trunk lines. Several users have complained that when making a call the system intermittently does not complete or drops the calls to external numbers. Which of the following are the MOST likely causes of the issue? (Select TWO)

A. An analog number is not available to take calls across the trunk line

B. The analog trunk line

C. The analog trunk interface on the system

D. An analog dialing code to the external number is incorrect

E. Users are misdialing the analog trunk number


Options are :

  • B,C
  • C,D
  • A,B
  • D,E

Answer : B,C

A company is considering a telephony solution for their branch offices that is low-cost, easy to

deploy and easy to manage. Which of the following is the BEST reason for the company to

investigate SIP?



Options are :

  • SIP is natively peer-to-peer, needing no infrastructure to run in simple environments.
  • SIP is natively standard, and is mature enough not to change.
  • SIP is natively secure, and is not at risk of hacking or denial of service.
  • SIP is natively meant for small deployments, yet not scalable for large deployments.

Answer : SIP is natively peer-to-peer, needing no infrastructure to run in simple environments.

A technician is notified that the network is down in a remote office. Upon arriving the technician finds that the network failed just after an IP telephone was moved to a new location. Upon examination the technician notices that the phone has two network cables plugged into it and both are connected back to the same switch. Which of the following would keep this from causing a network outage again? 


Options are :

  • Common Open Policy Service (COPS)
  • RIP
  • Separation of VLANs
  • Spanning Tree Protocol (STP)

Answer : Spanning Tree Protocol (STP)

220-802 CompTIA A+ Certification Practice Exam Set 6

Which of the following is necessary in order to have internet connectivity to multiple Internet

Service

Providers (ISP)?


Options are :

  • IS-IS
  • BGP-4
  • RIP
  • OSPF

Answer : BGP-4

Which of the following provides prioritization at layer 2 of the OSI model? 


Options are :

  • FCAPS
  • RSVP
  • DiffServ
  • 802.1p

Answer : 802.1p

Which of the following BEST describes the settings to be ordered for a voice and data PRI circuit? 


Options are :

  • D4, AMI
  • ESF, B8ZS
  • ESF, AMI
  • D4, B8ZS

Answer : ESF, B8ZS

CLO-001 CompTIA Cloud Essentials Certification Practice Test Set 3

The voicemail system is configured to send email alerts when new voicemails are left for users.

Users are complaining they are receiving voicemails but stopped receiving email alerts. Which of

the following is the MOST likely cause of the issue?



Options are :

  • Port 63 is not functioning on the voicemail server.
  • Port 25 is not functioning on the email server.
  • Port 21 is not functioning on the voicemail server.
  • Port 53 is not functioning on the email server.

Answer : Port 25 is not functioning on the email server.

A company has a contact center with thousands of distributed agents, skill-based routing, multiple

hunt groups, CTI and desktop screen pops. Management wants detailed reports about call volume

and hunt group activity within the contact center. Which of the following provides this level of

detail?



Options are :

  • PBX call detail records
  • Automatic Call Distribution (ACD) reports
  • CTI server traffic reports
  • Service Provider Multiplexer statistics

Answer : Automatic Call Distribution (ACD) reports

Which of the following is the data rate of a BRI D channel?



Options are :

  • 32 Kbps
  • 16 Kbps
  • 24 Kbps
  • 64 Kbps

Answer : 16 Kbps

CompTIA Network+ (N10-007)

Which of the following would be the BEST tool to use when a technician is dealing with packet loss and traffic congestion? 


Options are :

  • Cable Tester
  • Network Analyzer
  • Traceroute
  • Checksum Verifier

Answer : Network Analyzer

A technician finds that IP voice quality gets worse during certain times of the day in the VoIP ready

network, the technician should want to:



Options are :

  • reboot the network whenever the problem occurs to clear the cache on each network switch.
  • add more switches to the network.
  • decrease the number of calls that can be sent across the network based on the time of day.
  • define better traffic shaping and QoS policies.

Answer : define better traffic shaping and QoS policies.

Which of the following protocols is used for communicating call setup information across ISDN circuits? 


Options are :

  • H. 320
  • Q.2931
  • H. 323
  • .931

Answer : .931

SK0-004 CompTIA Server+ Certification Practice Exam Set 8

According to the H. 323 standard, which of the following are functions of a gatekeeper device? 


Options are :

  • Application
  • Session
  • Transport
  • Presentation

Answer : Application

Which of the following versions of MPEG compression requires the least processing and is often recommended for stream rates under 1.5 Mbps? 


Options are :

  • . MPEG - 4
  • . MPEG - 2
  • . MPEG - 1
  • . MPEG - 7

Answer : . MPEG - 1

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