Networking Interview Questions

I have some interview questions which I am not quite confident in my answers. Please help me to give the answers. I tick the answers which I think. Please correct if I am wrong with the answers. You can use "√" this symbol in the right end of the answer for me, please

If possible give me some explanation as well, please

When a host (host A) is talking to a remote host (host B) which is listening to port 80, what source port would host A use?

No port
Any port
Any port
above 1000
Don't know
80


If you had a multi-homed machine with two IP addresses, 10.0.0.5 and 212.32.4.6, which IP address would you likely bind to, if you wished to monitor Internet traffic?


10.0.0.5
212.32.4.6
Any
None
Don't know

 
If you have a network address of 10.0.0.0/24 and see extensive traffic to 10.0.0.255, what does this tell you?


RIP must be used on the network
Don't know
Too many multicasts
Too many broadcasts
The clients and sending allot of data to 10.0.0.255 which is likely to be a server
The device using address 10.0.0.255 is generating allot of traffic

 
How many bytes are reserved for the destination address in an IP header?

4
6
8
Don't know
2

 
What is a jabber and a runt?


Different characters from Star Wars
Don't know
Invalid checksum in TCP section
Badly formed packets
Incorrectly constructed IP header

 
If you wished to capture ICMP traffic, which port would you listen to?

1
8
80 √
105
None of the above
Don't know


What command is likely to be most prevalent in logon scripts?

exit
mkdir
netstat
Don't know
dir
net use
pause  


What of the following implements fault tolerance?

Mirror sets
Volume sets
Stripe sets with parity √
Stripe sets without parity
Don't know

 
What application would you use to export multiple mailboxes to .pst files?

ntbackup
Backup
Exec
exmerge
exbackup
Don't know


 
Is SBS how would you setup a new user?

Use user manager for domains
Use administration web page
Use user plugin manager
Use new user wizard
Don't know


 
Why might you use a CNAME?


Because you have run out of A records
Because you don't want to have to maintain multiple A records√
Because it is a web server
Because it is a temporary record
Don't know

 
Why would you increase a DNS serial number


To tell BDCs to replicate data
To show you when you last made a change
To start replication
To ensure the host is a primary DNS server
Don't know

 
What service is often associated with AT


Exchange MTA
NTBackup
Task Scheduler Modem Communication
Don't know  


What type of DNS record is www.wavex.co.uk


None of these
Don't know
SOA
PTR
MX
A
WWW
CNAME

 
When using NSLOOKUP, what does ls -d achieve?


Lists all records for domain
Displays current DNS tree
Don't know
Parses current
DNS tree
Lists cononical names
Lists all delta records

 
What set command would you use to display the server which looks after a DNS domain.

SET TYPE=CNAME  
wavex.co.uk
wavex.co.uk
ls -s wavex.co.uk
None of the above
Don't know
SET TYPE=A  
ls -a wavex.co.uk  



What back office applications come with SBS

Windows Server, SQL, ISA, Exchange
Don't know
Windows Server, SQL, Office, Exchange
Windows Server, SQL, Exchange

 
How would you disable a device in NT4?

Use Device Manager
Use the services applet
Use the devices applet
Use the hardware applet
Don't know  


How would you force replication of the active directory between domain controllers?


Active directory sites and services √
Active directory domains and trusts
net replicate -all
Restart net logon service
Don't know  

If three records exist within DNS, pointing to three email servers for a company, server1 has a preference of 10, server2 a preference of 20, and server3 has a preference of 200, which server will be the first contacted for inbound email.

server1 √
Don't know
None of them
server2
server3


What amount of data (in K) can be trasfered a second on a 10Mb backbone network.

10000000 √
12000
1220
50
Don't know

What might you plug a Centronics parallel cable into?

Scanner
USB Modem
Don't know
Modem
Monitor
Printer
External IDE Hard Drive  


Whats the maximum users for SBS

100
50 √
25
Unlimited
Don't know
 
What are the effects of using Winsock proxy?

All traffic except ICMP traffic which is outside the LAT table is directed to the proxy
All traffic is directed to the proxy server
Don't know
All traffic outside the LAT table is directed to the proxy server
All traffic except ICMP traffic is directed to the proxy

 
If you see the System Idle Process running at 99% what does this tell you?

Nothing
That the machine is running very slow √
That the machine is not doing very much
That there is a problem with the Idle Process
Don't know


rundll32.exe performs what function?

Don't know
Manages system processes
Prevents DLLs from using too much system resource
Holds various DLL runtime libraries
Executes DLLs as separate programs √
Traps Runtime errors within DLLs


What application might you use isinteg on?

Access
Exchange
SQL
DNS
ISA
Don't know

 
Why might a user be unable to run Microsoft Word?

Normal.dot is corrupt
Machine not turned on
Not installed
Word executable is corrupt

 
What technology supplied a host with IP address details?

Netbios
HTTP
DHCP √
Don't know
DNS  


What type of connector is often used to plug into hubs and switches?

USB
RJ45 √
Don’t know
BNC
RJ11
UNC  


What device might you see this line within its configuration? crypto isakmp key passw123 address 214.204.172.98

Netopia hub
Zywall router
ISA server
Cisco router
Netscreen
Firewall
Don't know

 
What is IP spoofing?

Where an invalid IP header is created
Don’t know
Where someone listens to IP traffic
Where someone changes the originators IP address
Where someone changes the destination IP address

 
What is a valid private IP address?
14.34.5.4 217.202.1.23
Don’t know
11.13.23.3
10.134.23.4 √
212.123.4.14
 
What term refers to the process that alters a private IP address to a public IP address
IPA
NAT √
NNPT
Don't know
PAT

 
If you had a company who's public website was www.bigcompany.com what DNS domain would you use to setup the company's Windows 2000 based internal network.

internalcompany.com
Don’t know
bigcompany.com
www.bigcompany.com 
local.bigcompany.com  √


A particular problematic program launches every time a user logs onto their machine. Where would you look to stop this?

Don't know
win.ini
registry (HKEY_LOCAL_MACHINE/…/run)
registry (HKEY_CLASSES_ROOT/…./autorun) √
autoexec.bat

 
What does PING tell you?

Don't know
The availability of remote machine √
Route trip time Number of hops between two points
The speed of a remote machine
Network speed  


What is the broadcast address for a machine with an IP address of 123.123.2.5 and a subnet mask of 255.255.255.224


123.123.2.31
Don't know
123.123.2.128
123.123.2.255 √
123.123.2.33  


If a host had an IP address of 123.123.2.5 and the Internet gateway had a private address of 123.123.2.1, what would the ROUTE ADD command look like to create the default gateway on the host.


ROUTE ADD 123.123.2.5 255.255.255.255 123.123.2.1
ROUTE ADD EVERYTHING 123.123.2.1
ROUTE ADD 0.0.0.0 123.123.2.1
ROUTE ADD 0.0.0.0 MASK 0.0.0.0 123.123.2.1 √
Don't know  


How would you find out all the current IP sessions.


list sessions
ipstat
netstat √
Don't know  


What is the decimal for 1111 (base 2)


16
15 √
4
32

 
What information would the following command give you on a Microsoft OS. TRACERT -d -h 1 www.microsoft.com


Microsofts IP address
The IP address of Microsoft's web server
The route trip time to Microsoft's web server √
Your default gateway
The IP address of Microsoft's firewall

 
If you had 500 machines which you wanted on the same LAN, what subnet mask would you use?


255.255.255.0
255.255.255.255
255.255.254.0 √
255.254.254.0
Don't know  


What port does SMTP use

25 √
80
Don't know
120
53
110

 
How would telnet help you test email

It wouldn't
telnet to port 80 and send a get request
telnet to port 25, use helo, mail from..
telnet to port 110, use list, retr and get
Don't know

 
Stopping which Exchange 5.5 service will stop all the others

Private Information Store
Information Store
Don't know System
Attendant
Internet Service
Public Information Store

 
How would you prevent SMTP relaying

Setup firewall to block inbound SMTP traffic
Setup firewall to do a reverse lookup
Setup SMTP gateway to do a reverse lookup
Setup SMTP to check TO/FROM domains Stop SMTP service

 
How many email addresses can each Exchange user have?


Don't know
1
2
3
10+

 
What client service allows you to logon to a domain?


Don't know
Network Client Services
Client for Microsoft Domains
Client for NetWare
Client for Microsoft Networks  

   
LVL 1
rodimymumAsked:
Who is Participating?
 
sweatbeastConnect With a Mentor Commented:
its one thing not noing this stuff, but asking all these questions here is just damned lazy.
do some research - you should be able to answer most of these questions via a google search.
0
 
mikeleebrlaCommented:
homework alert!!!!
0
 
isitcomputersCommented:
A) Not aloud to answer as it violates my moral beliefs
B) Maybe
C) Depends
D) None of the above.
E) All of the above.
0
 
rodimymumAuthor Commented:
THANKS FOR YOUR HELP. I AM DOING RESEARCH ON MY OWN FOR THE INTERVIEW QUESTIONS.
0
All Courses

From novice to tech pro — start learning today.