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Computer Networking
Computer networks are collections of computers which are connected together in order to communicate and transfer information. Questions about computer networks, networking protocols, and how to set them up belong here.
18,810 Questions
What does Disable Recursion in DNS mean?
Hi
In the Windows 2000/2003 DNS console (dnsmgmt.msc), under a server's Properties -> Forwarders tab is the setting Do not use recursion for this domain. On the Advanced tab you will find the confusingly similar option Disable recursion (also disables forwarders). Recursion refers to the action of a DNS server querying additional DNS servers (e.g. local ISP DNS or the root DNS servers) to resolve queries that it cannot resolve from its own database. So what is the difference between these settings? The DNS server will attempt to resolve the name locally, then will forward requests to any DNS servers specified as forwarders. If Do not use recursion for this domain is enabled, the DNS server will pass the query on to forwarders, but will not recursively query any other DNS servers (e.g. external DNS servers) if the forwarders cannot resolve the query. If Disable recursion (also disables forwarders) is set, the server will attempt to resolve a query from its own database only. It will not query any additional servers. If neither of these options is set, the server will attempt to resolve queries normally:
... the local database is queried
... if an entry is not found, the request is passed to any forwarders that are set
... if no forwarders are set, the server will query servers on the Root Hints tab to resolve queries beginning at the root domains.
Hope this is helpful rk
1 kibibyte = 1 KiB =210 bytes = 1024 bytes.
The prefix kibi is derived as a mnemonic from the words kilo and binary, indicating its origin in the closeness in value to the SI prefixkilo (1000). Notice, though, that while the SI prefix is lowercase (k), the IEC prefix starts with uppercase (Ki).
while 1Kilobyte = 1 KB = 103 bytes = 1000 bytes..
So, anybody can check it out by Wikipedia....
1kB is one kilo byte.
kB is 1024 bytes, which is 2 to the power of 10 (2^10).
Each byte is 8 bits. A bit is a binary digit which could be 0 or 1 only.
kB is 8192 bits, which is 8x(2 to the power 10) (16^10).
However; one kilo bits is 2^10 bits.
Kilo Bytes and Kilo Bits are used for two types electronic representations.
Kilo Bytes for storage and Kilo Bits for data streaming.
Difference between earthed and unearthed cable?
For earthed and un earthed XLPE cables, the IS 7098 part2 1985 does not give any difference in specification. The insulation level for cable for unearthed system has to be more. In simple statement the manufacturers states that 11 KV earthed cable is suitable for use in 6.6 KV unearthed system.The process of manufacture of cable is same. The size of cable will depend on current rating and voltage level.
What information does the next hop entry in a routing table identify?
The first router in the path to the destination network.
The next hop router is the first (or next) router in the path to the destination network. Each router looks at the destination network in the packet, then consults the routing table to identify the next hop router to the destination network.
The hop count identifies the numbers of routers in the path to the destination network. A default gateway router is a router that is used for packets used to external networks. Most routers do not have a default gateway setting, but instead use a default route setting which identifies the next hop router for all unknown networks.
Where can one find information about network tool kit?
A person can find information about network tool kits from several different places. Some of these include Enterprise Networking Planet and Breaking Into Wall Street.
default route,i think...it should be by default...
(中)什麼樣的路線讓路由器轉發數據包，即使它的路由表中沒有具體的路線到目的地網絡？ "
This is CCNA discovery 1 -Chapter 3-English exam No 18 . Default route is correct answer.
Why does a switch need an IP address?
It doesn't necessarily need and IP. Depends on whether it is a managed or unmanaged switch. For instance your switch would need an IP address in order to telnet to it.
How do you restore back your operating system if it written on by another operating system?
Answer: Do you mean you want to restore an OS which was overwritten by another? You can't. Once all of the important files have been overwritten, there's nothing much you can do except reinstall the original operating system from scratch.
Answer: A typical hard disk can only have one partition set to be the active boot partition, even though there may be boot programs on more than one partition.
Sometimes during installation of an OS, the boot location is changed to the new partition/OS bootstrap program. This leaves the previous partition/OS bootstrap program inaccessible. This may be corrected by configuring a Dual-boot option in the new bootstrap program to reach both OS.
You may be able to alter the active boot partition to reach the original bootstrap program, and add a dual-boot option to the original bootstrap program to reach both OS. I can recommend using the free/open software gPartEd to change this boot partition and SuperGrub to modify a GNU/Linux boot program.
What components make up a LAN and what do they all do?
Router - responsible for communication between computers.
Lan cable(s) - you need it(them) to connect your computer(s together or/and to internet) .
List down the advantages and disadvantages of pcb over pont to point wiring?
ØInexpensive/cheaper
ØHigh volume production
ØAutomated soldering is possible
ØHighly reliable
ØHold the component easily
It takes a matter of minutes after they realize that it goes missing. Tracking units installed everywhere.
Why does my printer not take orders from my pc.?
Hey ! There,
that's probably becoz
you haven't installed the software for it.
posted byspider1357911
Do you have to do ccna before ccna security?
You needn't to do ccna first before ccna security and you can also choose do ccna security first. But if I were you, I'll choose the ccna first.because we must take more time to prepare the ccna security if we have done the ccna. To do enough practice exams is necessary for me and you can get more details on http://www.testpassport.de/ccna
What system software you would use for local area network use?
Need more information. Is this a home network? Office building? Campus wide?
If you are running Windows, you have everything you need to connect and use a Local Area Network (LAN). If you are attempting to set up a server to administer your LAN, you can still use Windows.
I'm assuming you are hooking up a home network and will tell you that you don't need anything other than a router and your current operating system (OS) which is probably a version of Windows.
Just do some reading online or via Windows help and you can figure out what you need to do to get it up and working. Don't forget to make it secure if you are using a WiFi router (wireless/wired).
Identify and explain five subfields within communication?
1.Nonverbal Communication can be ambiguous.
2.Nonverbal behavior can interact with verbal communication.
3.Nonverbal behavior can regulate interaction
4.Nonverbal behavior can be a powerful tool in establishing relationship-level meanings.
5.Nonverbal communication reflects cultural values.
What is physical address in network?
The MAC address is the physical address. Usually the MAC address is a unique hexadecimal address hard coded into the network card.
Is the cable length printed on the cable?
Yes, Cable length is always printed on the cable wire. As I have recently checked cables of peterstechnology.com cable length was printed with ISI certification mark & it's company logo. So anyone can easily recognize the medical cable.
Thank you
How did i get banned from 4chan when I have never posted there?
You may be using a dynamic IP address. While restarting your modem will usually fix this, keep in mind that certain IP ranges are banned from accessing 4chan, due to excessive spamming.
Why verification and validation apply together?
verification finds out the information. and validation makes sure
its right
Logical adequacy refers to the extent to which an argument's structure ensures that if the premises are true, the conclusion must also be true. It is a measure of the validity of the reasoning process used in the argument. A logically adequate argument provides a sound basis for accepting the conclusion based on the given premises, thereby establishing a reliable link between them. In essence, it is a key criterion for evaluating the strength and reliability of logical reasoning.
Is a duplex the same as a maisonette?
No, a duplex and a maisonette are not the same. A duplex typically refers to a single building divided into two separate living units, often sharing a common wall, while a maisonette is a self-contained apartment that occupies two or more floors of a building, usually with its own entrance. Both offer separate living spaces but differ in structure and layout.
What type of connection media can be used for a lan?
cheap and simple connection use utp if noise or interference have to consider then co-axial
