New DNS trojan taints entire LAN from single box
One ‘sploit pwns all
By Dan Goodin in San Francisco
Posted in Security, 16th March 2009 22:43 GMT
Internet security experts are warning of a new rash of malware attacks that can hijack the security settings of a wide variety of devices on a local area network, even when they are [...]
For those of you who want the world at your fingertips, the wait is almost over.
The future PC promises to put nearly everything you could need or want right in your palm.
Think of a souped-up version of today’s smartphone, with a monitor that unrolls into a larger screen and a biometric security system that lets you [...]
Technical Interview Questions – Networking
* What is an IP address?
* What is a subnet mask?
* What is ARP?
* What is ARP Cache Poisoning?
* What is the ANDing process?
* What is a default gateway? What happens if I don’t have one?
* Can a workstation computer be configured to browse the Internet and yet NOT have a default [...]
Technical Interview Questions – Exchange 2003
* Tell me a bit about the capabilities of Exchange Server.
* What are the different Exchange 2003 versions?
* What’s the main differences between Exchange 5.5 and Exchange 2000/2003?
* What are the major network infrastructure for installing Exchange 2003?
* What is the latest Exchange 2003 Service Pack? Name a few changes in [...]
Technical Interview Questions – Active Directory
* What is Active Directory?
* What is LDAP?
* Can you connect Active Directory to other 3rd-party Directory Services? Name a few options.
* Where is the AD database held? What other folders are related to AD?
* What is the SYSVOL folder?
* Name the AD NCs and replication issues for each NC
* What [...]
Network engineer/architect interview questions
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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?
What LAN analyzer tools are you familiar with and describe how you use them [...]
OSPF
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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 stages are
If OSPF router is stucked in each stage what the problem is and how to troubleshoot [...]
1. User(s) are complaining of delays when using the network. What would you do?
2. What are some of the problems associated with operating a switched LAN?
3. Name some of the ways of combining TCP/IP traffic and SNA traffic over the same link.
4. What sort of cabling is suitable for Fast Ethernet protocols?
5. What is a Class [...]
VPN interview questions:
1.What are the different types of VPN?
2.What requirements should a VPN fulfill?
3.How many ways are there to implement VPN architecture?
4.What are the different ways authentication mechanism in VPN?
5.Can you explain the basic of encryption in VPN?
6.what’s the difference between Symmetric and Asymmetric cryptosystem?
7.what are the different symmetric algorithms?
8.What are the disadvantages of symmetric [...]
1. What are 10Base2, 10Base5 and 10BaseT Ethernet LANs
10Base2—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband
signaling, with a contiguous cable segment length of 100 meters and a maximum of 2 segments.
10Base5—An Ethernet term meaning a maximum transfer rate of 10 Megabits per second that uses baseband
signaling, with 5 [...]
