A. TRACERT
B. ROUTE
C. NBTSTAT
D. IPCONFIG
The TRACERT utility is Microsoft's own, used to trace a packet from its source ( your computer ) to a destination host ( a remote computer ).
Question 2. If you wanted to display all entries in the ARP cache, which of the following utilities would you use?
A . ARP - G
B. ARP - E
C. ARP - D
D. ARP - S
To display all entries in the ARP ( Address Resolution Protocol ) cache, you would use the ARP utility with the -G or - A switch. They are the same thing. To get the answer type "arp /?" at the command prompt.
ARP ( Address Resolution Protocol ) is used to obtain hardware ( MAC = Media Access Control ) addresses for communications with a destination host.
Question 3. You notice that the subnet mask is 0.0.0.0 on your Windows NT computer while using the IPCONFIG utility at the command prompt to check for IP address configuration. What does it mean when the IPCONFIG utility displays a subnet mask of 0.0.0.0?
A. The default gateway on your computer does not match the default gateway of the network.
B. Your computer has the same subnet mask as another computer on the network.
C. Your computer does not have the correct IP address class specified for it.
D. Your computer has the same IP address as another computer on the network.
The most likely cause in this scenario is that your computer has the same IP address as another computer in the network. When this happens, running IPCONFIG will yield an IP address of 0.0.0.0.
Question 4. If you want to copy files from one Windows NT computer to another, what TCP / IP utility would you use?
A . RCP
B. REXEC
C. TELNET
D. TRACERT
The RCP ( Remote Copy ) is Microsoft's own TCP / IP utility. It is used to copy files from a source Windows NT computer to a destination ( remote ) Windows NT computer, or vice-versa. Type "rcp /?" at the command prompt to get the command's full syntax.
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Question 5. Use the following diagram to answer this question :
You are working on your Windows NT workstation, SMALLNT, and you would like to communicate with another Windows NT computer, BIGNT. If both computers are on the same local subnet , where does SMALLNT look for the hardware address of the destination host? ( BIGNT in this case )
A. In its own ARP cache.
B. In the ARP cache of the destination host, BIGNT in this case.
C. If there is a DHCP server present , then in the ARP cache of the DHCP server.
D. In the LMHOSTS or HOSTS file of the source computer.
The ARP protocol ( and NOT the ARP command ) is used to map IP addresses to hardware addresses ( MAC addresses ). Anytime you communicate with a destination host that is on the same subnet ( locally ), then the hardware address of the destination host is obtained from the source host's LOCAL ARP cache. In this scenario, BIGNT's hardware address is obtained from SMALLNT's own ARP cache since both computers are on the same network.
Question 6. You have a print device connected to a server running the LPD service. From your Windows NT computer, you would like to obtain the status of the print device. What utility would you use to achieve the task?
A. LPD
B. NET USE
C. LPQ
D. GETDAEMON
The LPD ( Line Printer Daemon ) is a TCP / IP printing service. A print server that has a TCP / IP print device connected to it must have the LPD service installed on it. However, to obtain the status of a TCP / IP print device ( or print queue as it is often called in the TCP / IP circle ), you would use the LPQ command.
Type "lpq /?" at the command prompt to get the proper syntax. Pay close attention to the "-S" and "-P" switches. For the "-S" switch, you can specify the NAME or IP address of the print server running the LPD service.
Question : Under Windows NT Server 4.0, how do you install the LPD service?
Answer : Under Windows NT, the LPD service is known as "Microsoft TCP / IP Printing" ===> right-click Network Neighborhood | Properties | Services tab | Add... | "Microsoft TCP / IP Printing" service.
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Question 7. Let's say that you want to run a process on a remote host that is using the REXEC service, what Microsoft TCP / IP utility would you use?
A. RCP
B. REXEC
C. TELNET
D. FTP
The REXEC ( Remote Execute ) command is Microsoft's home-grown utility used to run processes on a remote computer that is also running the REXEC service. Type "rexec /?" at the command prompt to get the full syntax.
Question 8. If you want to retrieve system information from a remote host running the Finger service, what TCP / IP utility would you use?
A. REXEC
B. PING
C. RCP
D. FINGER
The FINGER utility is used to obtain system information from a remote host that is using the Finger service. To get the proper syntax, type "finger" at the command prompt.
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Question 9. Let's say that you want a DHCP client to give up its lease with a DHCP server, what command would you use to accomplish the task?
A. ipconfig / endlease
B. ipconfig / release
C. route / release
D. route / endlease
The IPCONFIG / RELEASE command is used to send a DHCPRELEASE message from a DHCP client to a DHCP server. The DHCPRELEASE message specifies that a client wishes to give up its current lease with the DHCP server. Type, "ipconfig /?" at the command prompt to display all the switches of the utility.
Question 10. You would like to see a list of NetBIOS computer names that have been resolved into IP addresses on your Windows NT computer. Which of the following utilities would you use?
A. ARP
B. NetBIOS
C. NETSTAT
D. NBTSTAT
You can use the "nbtstat" utitliy to view all NetBIOS computer names that have been resolved into IP addresses. To see the NetBIOS local name table of your workstation, use "nbtstat -n."
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UCHAR Netbios(
PNCB pncb // 鎸囧悜緗戠粶鎺у埗鍧楃殑鎸囬拡
);
榪斿洖鍊?
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<2>浣滀負寮傛璇鋒眰鏈変笅闈㈠嚑縐嶆儏鍐?
1.濡傛灉寮傛鍛戒護鍦╪etbios()榪斿洖榪斿洖浠栫殑璋冪敤鑰呬箣鍓嶅凡緇忓畬鎴?鎯呭喌鍚?lt;1>
2.涓?.鐩稿弽,榪斿洖鍊煎氨鏄?
<3>濡傛灉pncb鎸囬拡鏃犳晥榪斿洖鍊兼槸NRC_BADNCB
<4>濡傛灉ncb_length鎴愬憳鐨勫間笉姝ｇ‘鎴栬呮槸ncb_buffer鍖哄煙琚啓淇濇姢榪斿洖鍊間負NRC_BUFLEN
涓嬮潰璁茶NCB鎺у埗鍧楃殑緇撴瀯:
typedef struct _NCB {
UCHAR ncb_command;
UCHAR ncb_retcode;
UCHAR ncb_lsn;
UCHAR ncb_num;
PUCHAR ncb_buffer;
WORD ncb_length;
UCHAR ncb_callname[NCBNAMSZ];
UCHAR ncb_name[NCBNAMSZ];
UCHAR ncb_rto;
UCHAR ncb_sto;
void (*ncb_post) (struct _NCB *);
UCHAR ncb_lana_num;
UCHAR ncb_cmd_cplt;
UCHAR ncb_reserve[10];
HANDLE ncb_event;
} NCB;
3 ncb_command:鎸囧畾涓涓懡浠ょ爜鍜屼竴涓NCB鏄悓姝ヨ繕鏄紓姝ュ鐞嗙殑鏍囧織,濡傛灉ASYNCH甯擱噺閫氳繃"|"榪? 綆楃涓庡懡浠ょ爜緇勫悎鐨勮瘽,閭ｄ箞榪欎釜NCB鍧楀皢浼氬紓姝ユ墽琛屻?
.NCBACTION:鐢ㄤ簬 Win NT闈炴爣鍑嗙殑Netbios 3.0鐨勬爣鍑嗗懡浠?
.NCBADDGRNAME:娣誨姞涓涓粍鍚嶅瓧鍒版湰鍦板悕瀛楄〃,榪欎釜鍚嶇О涓嶈兘琚綉緇滀笂鐨勫叾浠栬繘紼嬩綔涓轟竴涓敮涓鐨? 鍚嶅瓧鏉ヤ嬌鐢ㄤ絾鏄粬鍙互琚叾浠栬繘紼嬩綔涓虹粍鍚嶅瓧鏉ユ坊鍔?
.NCBADDNAME:娣誨姞涓涓敮涓鍚嶅瓧鍒版湰鍦板悕瀛楄〃,TDI椹卞姩紼嬪簭淇濊瘉榪欎釜鍚嶅瓧鍦ㄧ綉緇滀腑鐨勫敮涓鎬?
.NCBASTAT:榪斿洖涓涓湰鍦版垨鑰呰繙紼嬮傞厤鍣ㄧ殑鐘舵?褰撲嬌鐢ㄨ繖涓懡浠ょ殑鏃跺?ncb_buffer 鎴愬憳鎸囧悜涓涓狝DAPTER_STATUS緇撴瀯鍚庨潰绱ц窡鐫涓涓狽AME_BUFFER緇撴瀯鏁扮粍
.NCBCALL:鐢ㄥ彟澶栦竴涓悕瀛楀紑鍚竴涓細璇?
.NCBCANCEL:緇堟鍓嶄竴涓湭鎵ц瀹岀殑鍛戒護
.NCBCHAINSEND:鍙戦佷袱浠芥暟鎹紦鍐插埌鎸囧畾鐨勪細璇濅紮浼?
.NCBCHAINSENDNA:鍙戦佷袱浠芥暟鎹紦鍐插埌鎸囧畾鐨勪細璇濅紮浼?浣嗕笉絳夊緟瀵規(guī)柟搴旂瓟灝辯珛鍗寵繑鍥?
.NCBDELNAME:浠庢湰鍦板悕瀛楄〃涓垹闄や竴涓悕瀛?
.NCBDGRECV:鎺ユ敹鏉ヨ嚜瀹佷竴涓悕瀛楃殑鏁版嵁鍖?
.NCBDGRECVBC:鎺ユ敹鏉ヨ嚜瀹佷竴涓悕瀛楃殑浠ュ箍鎾柟寮忓彂閫佺殑鏁版嵁鍖?
.NCBDGSEND:鍙戦佷竴涓暟鎹寘鍒頒竴涓寚瀹氱殑鍚嶅瓧(榪涚▼)
.NCBDGSENDBC:鍙戦佷竴涓暟鎹寘鍒板眬鍩熺綉涓殑姣忎竴鍙頒富鏈?
.NCBENUM:鐢ㄤ簬WinNT,闈炴爣鍑嗙殑Netbios3.0鐨勫懡浠?
.NCBFINDNAME:瀹氫綅涓涓悕瀛楀湪緗戠粶涓殑浣嶇疆,姝ゆ椂ncb_buffer鎸囧悜FIND_NAME_HEADER緇撴瀯,鍚屾椂鍚庨潰绱ц窡鐫涓涓垨鑰呭涓狥IND_NAME_BUFFER緇撴瀯
.NCBHANGUP:鍏抽棴涓涓寚瀹氱殑浼氳瘽
.NCBLISTEN:鍏佽涓涓細璇濅互鍙﹀涓涓悕瀛楁墦寮(鏈湴鎴栬呰繙紼嬬殑浼氳瘽閮藉彲浠?
.NCBRECV:浠庝竴涓寚瀹氱殑浼氳瘽浼欎即鎺ユ敹鏁版嵁
.NCBRECVANY:浠庝換浣曚竴涓叾浠栫殑浠ヤ竴涓寚瀹氱殑鍚嶅瓧閫氫俊鐨勪細璇濇帴鏀舵暟鎹?
.NCBRESET:澶嶄綅涓涓綉緇滈傞厤鍣?鍦ㄤ粬鎺ユ敹浠諱綍鍛戒護(涓巒cb_lana_num鎴愬憳鏈夌浉鍚岀殑鏁板瓧)涔嬪墠蹇呴』榪涜澶嶄綅鎿嶄綔????
.NCBSEND:鍙戦佹暟鎹埌鎸囧畾鐨勪細璇濅紮浼?
.NECBSENDNA:鍙戦佹暟鎹埌鎸囧畾鐨勪細璇濅紮浼村悗涓嶇瓑寰呭簲絳旂珛鍗寵繑鍥?
.NCBSSTAT:榪斿洖鏌愪釜浼氳瘽鐨勭姸鎬?鎸囧畾榪欎釜鍛戒護浠ュ悗ncb_buffer鎴愬憳鎸囧悜涓涓猄ESSION_HEADER 緇撴瀯,鍚庨潰绱ф帴鐫涓涓垨澶氫釜SESSION_BUFFER 緇撴瀯
.NCBUNLINK:鏂紑涓涓傞厤鍣ㄧ殑榪炴帴,璇ュ懡浠ょ殑璁劇疆鏄浜庡吋瀹規(guī)х殑鑰冭檻,鍦╓in32涓笉鏀寔璇ュ懡浠?/p>
]]>