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Questions on Wireshark?
The folks at Wireshark announced a new web site today designed to help support Wireshark users. The site, at http://ask.wireshark.org, allows anyone to post questions they have about Wireshark...
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Networking Question of the Week
Every week we post TCP/IP, subnetting, and other networking certification questions to help you prep for the exams. Which of the following IP subnet masks allows for up to 30 hosts per subnet?...
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Networking Question of the Week
Every other week we post TCP/IP, subnetting, and other networking certification questions to help you prep for the exams. In a router table, you see an entry for 172.16.32.0/20. What is the mask (in...
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Networking Question of the Week
Every other week we post TCP/IP, subnetting, and other networking certification questions to help you prep for the exams. Which address class is set aside for multicast? A B C D The correct answer is...
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Networking Question of the Week
Every other week we post TCP/IP, subnetting, and other networking certification questions to help you prep for the exams. Which of the following is a Class B address? 97.115.211.14 126.128.151.200...
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Networking Question of the Week
Every other week we post TCP/IP, subnetting, and other networking certification questions to help you prep for the exams. Which IP application does the well-known port number 23 reference? FTP SMTP...
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Networking Question of the Week
In the IP protocol stack, which OSI layer corresponds to the Internet layer? Layer 1 Layer 2 Layer 3 Layer 4 The correct answer is 3. The IP Protocol Suite layers are as follows: 1 — Physical 2 — Data...
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Networking Question of the Week
The router performs all but one of the following roles: Broadcast control Optimal Path Selection Single collision domain Logical addressing The correct answer is 3. A single collision domain is...
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Introduction to Fiber Channel Switching
Amr Ibrahim Enan is a Global Knowledge instructor who teaches and blogs from Global Knowledge Egypt. With the introduction of I/O consolidation that I discussed in a previous post, network engineers...
View ArticleCCNA v 1.1: OSI vs. TCP/IP and TCP/IP Transport Layer Protocols
OSI Model versus TCP/IP Protocol Suite OSI Model Layer Number OSI Model Layer TCP/IP Protocol Suite Layer Protocol Data Unit Network Device 7 Application Application Data 6 Presentation 5 Session 4...
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