Answer / guest

Answer: B

The 2 most important ISDN specifications are Q & I:

Q - Call setup and teardown.

I - Concepts and terminology.

PICT & JPEG are examples of what layer in the OSI seven layer model? A.) Transport B.) Presentation C.) Application D.) Datalink E.) Network F.) Session

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Which statement about an IP network is true? A. A broadcast source MAC address contains all zeros B. A MAC address is part of the physical layer of the OSI model C. MAC addresses are used by bridges to make forwarding decisions. IP address are used by routers. D. IP addresses allow a flat addressing scheme. MAC addresses use a hierarchical addressing scheme.

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Which port numbers are used by TCP and UDP to set up sessions with other hosts? A.) 1024 and above B.) 6 and 17 respectively C.) 1-25 D.) 6-17

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Which two describe frame tagging? A.) Examines particular info about each frame B.) A unique ID placed in the header of each frame as it traverses the switch fabric C.) A user- assigned ID defined to each frame D.) The building of filter tables

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In regards to TCP/IP, which class of address allows for the fewest valid Internet hosts? A.) D B.) E C.) Classes are not used in TCP/IP. D.) B E.) C F.) A

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Which OSI layer provides best effort end to end packet delivery? A.) Data-Link B.) Presentation C.) Network D.) Transport E.) Physical F.) Application

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What was the key reason the International Organization for Standardization released the OSI model? A. users could access network servers faster B. different vendor networks could work with each other C. the industry could create a standard for how computers work D. network administrators could increase the overall speed of their network

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Which layer is responsible for determining if sufficient resources for the intended communication exists? A.) Application B.) Network C.) Session D.) Presentation E.) Transport

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What is passive topology in ccna?

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Which information must a router know in order to perform proper and pungent routing? A. destination application of an incoming packet B. number of other packets in a single flow of data C. destination network address of an incoming packet D. number of routers that also know a path to the destination

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Briefly explain the conversion steps in data encapsulation.

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What is the regional telco office called, where the customers local loop terminates? A.) Demarc B.) DTE C.) DCE D.) CO E.) CPE

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