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?