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 gateway?

·         What is a subnet?

·         What is APIPA?

·         What is an RFC? Name a few if possible (not necessarily the numbers, just the ideas behind them)

·         What is RFC 1918?

·         What is CIDR?

·         You have the following Network ID: 192.115.103.64/27. What is the IP range for your network?

·         You have the following Network ID: 131.112.0.0. You need at least 500 hosts per network. How many networks can you create? What subnet mask will you use?

·         You need to view at network traffic. What will you use? Name a few tools

·         How do I know the path that a packet takes to the destination?

·         What does the ping 192.168.0.1 -l 1000 -n 100 command do?

·         What is DHCP? What are the benefits and drawbacks of using it?

·         Describe the steps taken by the client and DHCP server in order to obtain an IP address.

·         What is the DHCPNACK and when do I get one? Name 2 scenarios.

·         What ports are used by DHCP and the DHCP clients?

·         Describe the process of installing a DHCP server in an AD infrastructure.

·         What is DHCPINFORM?

·         Describe the integration between DHCP and DNS.

·         What options in DHCP do you regularly use for an MS network?

·         What are User Classes and Vendor Classes in DHCP?

·         How do I configure a client machine to use a specific User Class?

·         What is the BOOTP protocol used for, where might you find it in Windows network infrastructure?

·         DNS zones – describe the differences between the 4 types.

·         DNS record types – describe the most important ones.

·         Describe the process of working with an external domain name

·         Describe the importance of DNS to AD.

·         Describe a few methods of finding an MX record for a remote domain on the Internet.

·         What does "Disable Recursion" in DNS mean?

·         What could cause the Forwarders and Root Hints to be grayed out?

·         What is a "Single Label domain name" and what sort of issues can it cause?

·         What is the "in-addr.arpa" zone used for?

·         What are the requirements from DNS to support AD?

·         How do you manually create SRV records in DNS?

·         Name 3 benefits of using AD-integrated zones.

·         What are the benefits of using Windows 2003 DNS when using AD-integrated         

        zones?

·         You installed a new AD domain and the new (and first) DC has not registered its

SRV records in DNS. Name a few possible causes.

·         What are the benefits and scenarios of using Stub zones?

·         What are the benefits and scenarios of using Conditional Forwarding?

What are the differences between Windows Clustering, Network Load Balancing  and Round Robin, and scenarios for each use?

·         How do I work with the Host name cache on a client computer?

·         How do I clear the DNS cache on the DNS server?

·         What is the 224.0.1.24 address used for?

·         What is WINS and when do we use it?

Can you have a Microsoft-based network without any WINS server on it? What are the "considerations" regarding not using WINS?

·         Describe the differences between WINS push and pull replications.

What is the difference between tombstoning a WINS record and simply deleting  it?

Name the NetBIOS names you might expect from a Windows 2003 DC that is   registered in WINS.

·         Describe the role of the routing table on a host and on a router.

·         What are routing protocols? Why do we need them? Name a few.

·         What are router interfaces? What types can they be?

·         In Windows 2003 routing, what are the interface filters?

·         What is NAT?

·         What is the real difference between NAT and PAT?

·         How do you configure NAT on Windows 2003?

·         How do you allow inbound traffic for specific hosts on Windows 2003 NAT?

·         What is VPN? What types of VPN does Windows 2000 and beyond work with natively?

·         What is IAS? In what scenarios do we use it?

·         What's the difference between Mixed mode and Native mode in AD when dealing with RRAS?

·         What is the "RAS and IAS" group in AD?

·         What are Conditions and Profile in RRAS Policies?

·         What types or authentication can a Windows 2003 based RRAS work with?

·         How does SSL work?

·         How does IPSec work?

·         How do I deploy IPSec for a large number of computers?

·         What types of authentication can IPSec use?

·         What is PFS (Perfect Forward Secrecy) in IPSec?

·         How do I monitor IPSec?

·         Looking at IPSec-encrypted traffic with a sniffer. What packet types do I see?

·         What can you do with NETSH?

·         How do I look at the open ports on my machine?