What is Active Directory schema? What are the domain functional level in Windows Server 2003? What are the forest functional level in Windows Server 2003? What is global catalog server? How we can raise domain functional & forest... Read More

Q1. Name of seven layers in Open System Interconnection model. A. They are Application, Presentation, Session, Transport, Network, Data link, and Physical. Q2. What is the time complexity of matrix multiplication ? void Mult_Matrix(matrix A,... Read More

User(s) are complaining of delays when using the network. What would you do? What are some of the problems associated with operating a switched LAN? Name some of the ways of combining TCP/IP traffic and SNA traffic over the same link. What... Read More

OSPF Describe OSPF in your own words. OSPF areas, the purpose of having each of them Types of OSPF LSA, the purpose of each LSA type What exact LSA type you can see in different areas How OSPF establishes neighboor relation, what the... Read More

What is the difference between layer 2 and layer 3 in the OSI model? What is the difference between a hub, switch, and router? What is a VLAN? What is the difference between TCP and UDP? How do you distinguish a DNS problem from a network... Read More

Q: What are the seven layers of the OSI model? A: The layers are physical, data link, network, transport, session, presentation, and application layers. Q: In the TCP client-servel model, how does the three-way handshake work in opening... Read More

A pretty funny story - someone was offered a test of basic Linux questions for a junior network administrator position, and figured out that the best way to impress the future employer with good answers is to post the list on UbuntuForums. Good idea,... Read More

What is a wildcard mask, and how is it different from a netmask? How do you configure a Cisco switch or router? What are the steps needed? How would I place an interface into trunking mode? How do you shutdown an interface on a router or... Read More

Describe the OSI model. What is the difference between a repeater, bridge, router? Relate this to the OSI model. Describe an Ethernet switch and where it fits into the OSI model. What is a VLAN? What is an ELAN? What is the difference? ... Read More

What is a default gateway? - The exit-point from one network and entry-way into another network, often the router of the network. How do you set a default route on an IOS Cisco router? - ip route 0.0.0.0 0.0.0.0 x.x.x.x [where x.x.x.x... Read More

What is a firewall? Describe, genrally, how to manage a firewall What is a Denial of Service attack? What is a “spoofed” packet? What is a SYN Flood? What do you do if you are a victim of a DoS? What is GPG/PGP? What is SSH? ... Read More

These questions were sent in from IBM. They discuss various telecom and networking topics. OSPF Describe OSPF in your own words. OSPF areas, the purpose of having each of them Types of OSPF LSA, the purpose of each LSA type What... Read More

What are the required components of Windows Server 2003 for installing Exchange 2003? - ASP.NET, SMTP, NNTP, W3SVC What must be done to an AD forest before Exchange can be deployed? - Setup /forestprep What Exchange process is responsible for... Read More

Workers can not print from the printer, there user log on are correct and are allowed to print from that printer in active directory. How would you resolve this issue? What is the difference between hub and switch? Your hard drive is... Read More

What is UTP? UTP — Unshielded twisted pair 10BASE-T is the preferred Ethernet medium of the 90s. It is based on a star topology and provides a number of advantages over coaxial media: It uses inexpensive, readily available copper phone wire... Read More

Question 1: How does the race condition occur? It occurs when two or more processes are reading or writing some shared data and the final result depends on who runs precisely when. Question 2: What is multiprogramming? Multiprogramming is a rapid... Read More

Describe how the DHCP lease is obtained. It’s a four-step process consisting of (a) IP request, (b) IP offer, © IP selection and (d) acknowledgement. I can’t seem to access the Internet, don’t have any access to the... Read More

You need to retrieve a file from the file server for your word processing application, which layer of the OSI model is responsible for this function? Presentation layer Application layer Session layer Transport layer Datalink... Read More

How does TCP handshake work? How does SSL handshake work? What is the difference between passive FTP and active FTP? What is the difference between socket and session? How does network management station work? What are the different... Read More

What ports does FTP traffic travel over? What ports does mail traffic utilize? What ports do HTTP and HTTPS use? Why is NTP required in an NFS network? Name some common mal software on the server side What is CPAN? How do you access it? ... Read More

Explain how traceroute, ping, and tcpdump work and what they are used for? Describe a case where you have used these tools to troubleshoot. What is the last major networking problem you troubleshot and solved on your own in the last year? ... Read More