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Last Updated: Jun 24, 2026
IT Exam Items Repository › Category: CCNA 4 v4
At which two layers of the OSI model does a WAN operate? (Choose two.)
ITExamAnswers Editorial Team asked 4 years ago • 
What three terms are associated with ISDN PRI? (Choose three.)
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What can cause a reduction in available bandwidth on a cable broadband connection?
ITExamAnswers Editorial Team asked 6 years ago • ,
Which switching type will allow the communication devices in the provider network to be shared and only allocated to an individual subscriber during data transfer?
ITExamAnswers Editorial Team asked 4 years ago • 
Which statement about WAN protocols is correct?
ITExamAnswers Editorial Team asked 4 years ago • 
Which two features are identified with Frame Relay connections? (Choose two.)
ITExamAnswers Editorial Team asked 4 years ago • 
Which two devices are commonly used as data communications equipment? (Choose two.)
ITExamAnswers Editorial Team asked 4 years ago • 
Which networking device is typically used to concentrate the dial-in and dial-out traffic of multiple users to and from a network?
ITExamAnswers Editorial Team asked 4 years ago • 
Which packet-switched WAN technology offers high-bandwidth connectivity capable of managing data, voice, and video all on the same infrastructure?
ITExamAnswers Editorial Team asked 4 years ago • 
For digital lines, which device is used to establish the communications link between the customer equipment and the local loop?
ITExamAnswers Editorial Team asked 4 years ago • 
Why is the call setup time of a circuit-switched WAN implementation considered a drawback?
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Which statement is true of the functionality of the layers in the hierarchical network model?
ITExamAnswers Editorial Team asked 4 years ago • 
A company needs a WAN connection that is capable of transferring voice, video, and data at a minimum data rate of 155 Mbps. Which WAN connection is the best choice?
ITExamAnswers Editorial Team asked 4 years ago • 
Which statement is true about data connectivity between a customer and a service provider?
ITExamAnswers Editorial Team asked 4 years ago • 
Which term describes a device that will put data on the local loop?
ITExamAnswers Editorial Team asked 4 years ago • 
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