1, AExplanation: In this scenario the client computer does not have the correct information in its local DNS cache.There are two ways to solve this problem You could use ipconfig / flushdns to reset the DNS cache, or you could stop and restart the. DNS Client Service.
============================================================================================================================================================================================================= ==========================================================================================================================================================================================00 An example of this would the TCP / IP suites use of the three-way handshake. The sending and receiving of synchronization and acknowledgment packets between the sending system and the receiving system accomplish a three-way handshake. Errors can be corrected when the sender does Not Receive An Acknowledge, Withnin A Specified Amount of Time, from the receiving system the packet will be reset.
============================================================================================================================================================================================================= ===================================================================================================================================================================================================================================================================== MultiLink is enabled at the client only. You Therefore need it.
============================================================================================================================================================================================================= ============================================= For Data Transfer. Therefore, by Enabling TCP Port 80 and TCP Port 21 Only Http and ftp Traffic Will Be allowed. All Other Network Traffic Will NOT BE ALOWED. ================== ============================================================================================================================================================================================================= ========= 5, B, C, EEXPLANATION: B: Users can logically be grouped Into VLAN.c: by Grouping Uses Into Different VLANS, A Secure VLAN CAN BE CREATED. ONLY Some Users Could Be Allowed to Access The Secure VLAN. This Improves Security.e: Each Separate VLAN IS A Separate Broadcast Domain. Creating VLAN Increase The Number Of Broadcast Domains and Decrease The Size of Each Broadcast Domain.
============================================================================================================================================================================================================= ============================================================================================================================================ ============================================================================================================================================================================================================= ==================== 7, C, DEXPLANATION: As the network is routed, IT Consists of more the one subnet. On A Routed Network a default Gateway Address Has To be configured so that the clients on one subnet will be able to communicate with the clients on another subnet across the router. The requirement to use NetBIOS names in a routed environment forces us to use a WINS server, as NetBIOS broadcasts can not pass across the router .
============================================================================================================================================================================================================= =========================================================================================== ENSURING THAT THERE IS A LOOP Free Network. this is done as the redundant ports area blocked. ================================ ==================================================== 9, CEXPLANATION: IN CUT -through mode, the switch checks the destination address (DA) as soon as the header is received and immediately begins forwarding the frame. Depending on the network transport protocol being used (connection or connectionless orientate), there is a significant decrease in latency from input port to output port. The delay in cut-through switching remains constant regardless of the size of the frame, because this switching mode starts to forward the frame as soon as the switch reads the DA.
============================================================================================================================================================================================================= =======================================D00. Domains, But Also Separate Broadcast Domains, AS Routers Usually Do Not Pass Broadcast Traffic. =================================== =================================================== 11, DEXPLANATION: While L2TP IS Used TO SET UP ITSELF DOES NOTHING FOR Security. ipsec is The protocol buy them.
============================================================================================================================================================================================================= =================================== 12, bb. You're uses a process called server clustering.
============================================================================================================================================================================================================= =============================================1, "public key is quite secureiff" unhackable, "public key is quite secureiff . implemented properly PGP (Pretty Good Privacy) is a publicly available security encryption mechanism, as are various symmetric key solutions public key encryption uses an asymmetric key pair:. a public key and a private key.
============================================================================================================================================================================================================= ========================= 14, aexplanation: when adding dns servers to the domain, you must add an ns (name server) Record to the zone .NS.Description: Used to map a DNS domain name as specified in owner to the name of hosts operating DNS servers specified inthe name_server_domain_name field.Syntax: owner ttl iN NS name_server_domain_name.Example:. example.microsoft.com iN NS nameserver1.example .microsoft.com.
15. Enumerate the right to the mutant in the community, obligation (6CBS link address: system function -> User Code of Conduct -> Fifth "moderator's rights, obligations")
A. Add a wonderful post to the essence; B. All of this community does not meet the community requirements post to any community or delete; C. Delete, add points, points, give points Operation, it has the right to review the FAQ set through this edition; D. There are rights to organize various activities in the name of 9CBS; E. There is not enough time to maintain a community or the version of the netizen vote against the ticket and pass the moderator will be exempted from the version Lord; F. The total moderator is responsible for monitoring the work of the moderator, accepts the complaint, manages the work of the version of the version, and can handle any post that does not meet the norm. 16. The following is the statement, incomplete or wrong (C, D) (9CBS link address: system function -> use help -> 第 使用 ")
A, if the post is no longer replying, or only the post is replying, the post can delete the post, do not deduct credit points, return to post owners can be divided; b, if the post has other account reply, the post is not allowed to delete post; c The moderator has the right to delete this version of the post, delete a post, deduct the post-reputation division 3 points, return to post owners can be divided; D, if the post has a message, deduct this post to win the score, return to post owners can be divided; E, the moderator deletes its own post does not deduct credibility;
17. The following is the wrong expression of the exemption (c) (9CBS link address: http://www.9cbs.net/help/help.asp# expert points)
A, your score post is deleted; b, your number of posts move to non-technical zones; C, is blocked in the big class block. D. The network management is discovered by the network, directly deducting;
