Which of the following protocols is needed when a fax machine is connected to ATA?
A. H.323
B. SCCP
C. SIP
D. MGCP
Which of the following layers of the OSI model is responsible for establishing communication session between the processes running on different communication entities in a network?
A. Layer 7 (Application layer)
B. Layer 3 (Network layer)
C. Layer 5 (Session layer)
D. Layer 2 (Data-link layer)
Which of the following factors are related with bandwidth requirements of a VoIP call? Each correct answer represents a part of the solution. Choose all that apply.
A. Codec selection
B. Layer 3 routing protocol
C. Speech samples per packet
D. Layer 2 media type
Which of the following are types of Digital Subscriber Line (DSL)? Each correct answer represents a complete solution. Choose two.
A. NDSL
B. SDSL
C. ADSL
D. BDSL
You have been hired by Future Perfect Inc. to configure its TCP/IP-based network. The company has three branch offices at different locations. You decide to use private IP addressing.
Which of the following are the characteristics of private IP addressing? Each correct answer represents a complete solution. Choose all that apply.
A. Private IP addresses can be assigned by many organizations at a time without conflict.
B. NAT allows users to share a single public IP address with private IP addresses.
C. Private IP addresses are used to create a network for home users only.
D. Private IP addresses are provided by an Internet Service Provider.
Which of the following statements are true about routers? Each correct answer represents a complete solution. Choose all that apply.
A. Routers are responsible for making decisions about which of several paths network (or Internet) traffic will follow.
B. Routers organize addresses into classes, which are used to determine how to move packets from one network to another.
C. Routers act as protocol translators and bind dissimilar networks.
D. Routers do not limit physical broadcast traffic.
John works as a Network Administrator in ABC Inc. He complains that he is unable to communicate with a remote computer. He suspects that data loss is occurring at one of the routers that are routing the packets to the destination computer. He wants to test the route that the packets follow from his computer to the destination computer. He also wants to view the information about the packet losses at every router along the way.
Which of the following commands will he use to accomplish this?
A. PATHPING
B. PING
C. TRACERT
D. NET VIEW
You work as a Voice Technologies Administrator for PassGuide Inc. Your job is to manage and troubleshoot the Voice network of your company. You have configured H.323 to support DTMF.
Which of the following DTMF relay types are supported by Cisco gateways using H.323?
A. H.245 Signal
B. H.245 Alphanumeric
C. NTEs
D. NSE
Which of the following is responsible for publishing the requests for RFCs that are used to establish TCP/ IP specifications?
A. IETF
B. IEEE
C. ITU
D. ICANN
Mike works as a Sales Engineer for Umbrella Inc. The employees of the company are reporting problems with voice delays on telephone calls on the corporate VoIP network.
What is the most likely cause of this problem?
A. Large data packets are causing the voice packets to exceed their delay budget.
B. Voice codec is not able to compress the voice stream into pack.
C. Echo cancellation has been enabled on the voice coders without configuring phase shifting.
D. The destination number is not contained in the local dial plan.
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