CT0-101 Convergence+ Certification Practice Exam Set 8

Which of the following codecs would a technician configure on the VoIP server to match the voice

quality of a regular Public Switched Telephone Network (PSTN) call on a VoIP phone?



Options are :

  • 711
  • 732
  • 722
  • 729

Answer : 711

Comptia A+ (220-801) Certification Exam Practice Test Set 5

Which of the following is present in both TCP and User Datagram Protocol (UDP) headers? 


Options are :

  • Sequence Number field
  • Urgent Pointer field
  • Checksum field
  • Destination Port Number field

Answer : Checksum field

A technician is rolling out IP softphones in phases to telecommuters. During the pilot and initial

production deployment, no problems were noted. But after a major increase in the number of

remote users, all callers begin to complain of voice quality issues, while main site users

experience no issues. Which of the following should the technician investigate?


Options are :

  • Softphone QoS settings
  • Bandwidth utilization on Internet circuit
  • Firewall port and CPU utilization
  • IP PBX port and CPU utilization
  • Network Address Translation (NAT) configurations

Answer : Firewall port and CPU utilization

Which of the following is the highest possible Mean Opinion Score (MOS)? 


Options are :

  • 10.0
  • 5.0
  • 3.0
  • 4.0

Answer : 5.0

CompTIA JK0-022 E2C Security+ Compliance & Operational Exam Set 4

Can DiffServ be enabled at the 802.11 wireless access point to support VoIP? 


Options are :

  • No, wireless access points work only with data.
  • Yes, if the latest 802.11 DiffServ standard is deployed.
  • No, the 802.11 standard makes allowances for this ability.
  • No, DiffServ refers to and applies to layer 3 technologies.

Answer : No, DiffServ refers to and applies to layer 3 technologies.

Which of the following wireless network standards offers compatibility with 802.11b equipment and a transfer rate of 54 Mbps?


Options are :

  • 802.11A
  • 802.11e
  • 802.11G
  • 802.11C

Answer : 802.11G

Which of the following compression algorithms would a technician recommend to minimize the bandwidth  assigned to VoIP traffic?


Options are :

  • 711
  • G. 729a
  • G. 732
  • 711a

Answer : G. 729a

CompTIA JK0-015 E2C Security+ Certification Practice Test Set 12

Which of the following BEST describes a network bottleneck?



Options are :

  • A network with multiple switches.
  • A router that is receiving more information than it can process.
  • A switch that is underutilized.
  • A router with multiple WAN links.

Answer : A router that is receiving more information than it can process.

Which of the following network topologies would make it possible for a remote site to continue to

communicate during a complete main site outage?


Options are :

  • Stub network
  • Meshed network
  • Hub and Spoke network
  • Frame Relay network

Answer : Meshed network

Which of the following BEST describes the functionality of a gateway? (Select TWO)

A. A device or software program that provides the central point of functionality for all VOIP calls.

B. A device or software program that provides a proxy between two systems with incompatible

technologies.

C. A device or software that navigates packets between the enterprise network and the internet.

D. A device or software that connects networks that use different protocols.

E. A device that protects against security breaches from external networks.



Options are :

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

Answer : B,D

SY0-401 CompTIA Security+ Certification Practice Exam Set 1

A technician is responsible for sending a training video to a potential client for review, the technician must identify this videos ownership without impairing the functionality to the viewers. Which of the following forms of data security is this referred to as? 


Options are :

  • Root Kit
  • Watermarking
  • Content Scramble System (CSS)
  • Public Key Encryption

Answer : Watermarking

Which of the following BEST defines the role of gatekeepers? 


Options are :

  • Change the route of incoming calls to alternative destinations based on the user's preferred settings and the status of a telephone line when a call is received.
  • Monitor signal activity for a VoIP session, and terminate the session after transmission has completed
  • Control the set up, connection, feature operation, and disconnection of calls through the data network.
  • Transform audio that is received from a telecommunication system into a format that can be used by a different network

Answer : Control the set up, connection, feature operation, and disconnection of calls through the data network.

Which of the following would be used to initiate a call from the contacts listings of the email application? 


Options are :

  • SMTP
  • Telephone Application Programming Interface (TAPI)
  • Messaging Application Programming Interface (MAPI)
  • SRTP

Answer : Telephone Application Programming Interface (TAPI)

CT0-101 Convergence+ Certification Practice Exam Set 10

Which of the following features allows a PBX to determine the route an outbound call should

follow?


Options are :

  • Automatic Route Selection (ARS)
  • Routing Information Protocol (RIP)
  • Automatic Call Distributor (ACD)
  • Direct Inward System Access (DISA)

Answer : Automatic Route Selection (ARS)

At which of the following layers of the OSI model does VLAN operate? 


Options are :

  • Network layer
  • Data link layer
  • Physical layer
  • Session layer

Answer : Data link layer

Which of the following is the call setup protocol used in ISDN and H. 323? 


Options are :

  • Q.2931
  • Q.931
  • H. 245
  • H. 225

Answer : Q.931

CompTIA CA1-001 Advanced Security Practitioner Practice Exam Set 4

Which of the following would be a reason that a customer would need to use STUN in their

converged

network implementation?


Options are :

  • The customer has SIP for both telephony and video conferencing
  • The customer is using a SIP proxy server.
  • The customer is using T-1 trunks with a SIP-based media gateway.
  • The customer has SIP endpoints behind a NAT router

Answer : The customer has SIP endpoints behind a NAT router

Which of the following is an acceptable measurement for TOLL quality voice when testing for jitter between VoIP systems? 


Options are :

  • Less than 20ms
  • Less than 30ms
  • Less than 40ms
  • Less than 189ms

Answer : Less than 20ms

Which term BEST describes a PBX which uses TDM and IP technology for calls?



Options are :

  • IP based
  • Hybrid
  • Internet based

Answer : Hybrid

CompTIA Network+ 6 Certification Practice Exams - 2019 Set 1

Identify the components needed for a softphone end-point: (Select THREE)

A. PC

B. USB drive

C. Analog phone

D. Microphone

E. Sound card



Options are :

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

Answer : A,D,E

Which of the following standards contained in H. 323 involves video specifications? 


Options are :

  • H. 263
  • . H. 225
  • H. 235
  • H. 245

Answer : H. 263

An IP softphone user is complaining of an echo on external calls. Which of the following is MOST likely the cause? 


Options are :

  • Routers are introducing feedback.
  • Sidetones are not being filtered
  • The soundcard volume is set too low
  • Headset speaker is too close to the microphone

Answer : Headset speaker is too close to the microphone

CompTIA N10-004 Network+ Certification Practice Test Set 4

Which of the following mobility functions provides the BEST way to determine the location and

status of a user?



Options are :

  • Unified messaging
  • RTP
  • Instant messaging
  • SIP Presence

Answer : SIP Presence

All the following are correct about Unified Messaging EXCEPT:



Options are :

  • unified messaging is the integration of e-mail, fax and voicemail.
  • a user can receive a fax in their e-mail.
  • a user can forward their voicemail in form of e-mail.
  • a user can setup a voice conference on demand.

Answer : a user can setup a voice conference on demand.

Which of the following protocols can be used in scripting call flows in an Interactive Voice

Response (IVR)?



Options are :

  • HTTP
  • TCP/IP
  • HTML
  • XML/VXML

Answer : XML/VXML

JK0-019 CompTIA E2C Network + Certification Exam Set 10

Which of the following is the recommended maximum round trip delay between converged

systems to

maintain TOLL quality voice?


Options are :

  • . less than 180ms
  • less than 240ms
  • less than 200ms
  • less than 160ms

Answer : . less than 180ms

Which of the following layers of the OSI model is responsible for intelligently selecting the MOST

appropriate route through the network for a packet to travel?


Options are :

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

Answer : Network layer

Which of the following BEST describes a PBX's architecture if it has no ability to upgrade to VoIP? 


Options are :

  • Asynchronous Transfer Mode (ATM) based
  • TDM based
  • PBX based
  • Statistical Time Division Multiplexer (STDM) based

Answer : TDM based

CompTIA Network+ (N10-007) : 6 Practice Exams - 2019 Set 3

Which of the following does the Source Port field identify in a datagram using the User Datagram Protocol (UDP)?   


Options are :

  • The port to be quenched.
  • The port used by the sender.
  • The port used by the receiver
  • The port used by the domain name server (DNS).

Answer : The port used by the sender.

A user is complaining that during calls the remote caller's voice intermittently cannot be heard.

Which of the following is the MOST likely cause?



Options are :

  • Network packet drops on the transmitting side of the conversation
  • Network jitter is above acceptable limits on the round trip path
  • Network packet drops on thereceivers side of the conversation
  • Network to Public Switched Telephone Network (PSTN) impedance is mismatched

Answer : Network packet drops on thereceivers side of the conversation

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