The root id is set so that direct login is disabled.  Information must be reviewed relating to when root access was obtained.  In which of the following files is this information located?()A、 /var/adm/sulog B、 /var/adm/wtmp C、 /etc/security/user D、 /etc/security/failedlogin

The root id is set so that direct login is disabled.  Information must be reviewed relating to when root access was obtained.  In which of the following files is this information located?()

  • A、 /var/adm/sulog 
  • B、 /var/adm/wtmp 
  • C、 /etc/security/user 
  • D、 /etc/security/failedlogin

相关考题:

●试题五阅读下列程序说明和C程序,将应填入程序中(n)处的字句,写在答卷纸的对应栏内。【程序说明】本程序先从文件读入各考生的准考证号(设为整型数)及成绩,并将其存放在一棵检索二叉树上,二叉树结点的健值是成绩,每个结点带一链表,链表结点存放取得该成绩的考生的准考证号。然后,程序按中序遍历检索二叉树,从高分到低分输出结果,使每行输出成绩及其取得成绩的考生的准考证号。【程序】#include stdio.htypedef struct idnode {int id;struct idnode * next;} IdNode;typedef struct marknode {int mark;IdNode *head;struct marknode *left, *right;} MarkNode;char fname [ ]="sp07.dat";main(){ int id, mark;MarkNode *root=null;FILE *fp=fopen(fname,"r");if(!fp) {printf("file%s open error.\n", fname);exit(0);}while (!feop(fp)) {fscanf(fp,"%d%d", id, mark);btree(root, id, mark);}fclose(fp);print(root);}btree(MarkNod**mpptr, int id, int mark){ IdNode *ip;MarkNode *mp=*mpptr;if (1) {if (mark==p-mark) addIdNODE ( (2) , id);else if (markmp-mark) btree (mp-left, id, mark);else btree(mp-right, id, mark);}else{ mp=(marknode *) malloc(sizeo (marknode));mp-mark=mark;mp-left=mp-right=NULL;(3)addIdNode(mp-head, id);(4) ;}}addIdNode(IdNode **ipp, int id){IdNode *ip=*ipp;if ( (5) )addIdNode ( (6) ), id;else{ip=(IdNode *)malloc(sizeof(IdNode));sp-id=id;ip-next=NULL;(7)}}print(MarkNode *mp){ IdNode *ip, *ip0;if (mp){print (mp-left);printf("%6d:\t",mp-mark);ip=mp-head;while(ip){printf("%6d",ip-id);ip0=ip;ip=ip-next;free(ip0);}printf("\n");printf(mp-right);free(mp);}}

生成树的比较过程中,表明根的字段是(). A.root idB.costC.bridge idD.port id

下列关于IEEE 802.1D生成树协议(STP)的描述中,错误的是______。A.STP是一个数据链路层的管理协议B.STP运行在网桥和交换机上,通过计算建立一个稳定、无回路的树状结构网络C.网桥协议数据单元(BPDU)携带有Root ID、Root Path Cost、Bridge ID等信息D.通知拓扑变化的BPDU长度不超过35B

(15)下列关于IEEE802.1D生成树协议(STP)的描述中,错误的是A、STP是一个数据链路层的管理协议B、STP运行在网桥和交换机上,通过计算建立一个稳定、无回路的树状结构网络C、网桥协议数据单元BPDU携有Root ID、Root Pass Cost、Bridge ID等信息D、通知拓扑变化的BPDU长度不超过35B

You want to influence the root bridge selection within the Ezonexam LAN. Which two values are used by spanning tree protocol to elect a root bridge? (Choose two.)A. Amount of RAMB. Speed of the linksC. IOS VersionD. MAC AddressE. Bridge PriorityF. IP AddressG. Router ID

Refer to the exhibit. Why has this switch not been elected the root bridge for VLAN1?() A.It has more than one interface that is connected to the root network segment.B.It is running RSTP while the elected root bridge is running 802.1d spanning tree.C.It has a higher MAC address than the elected root bridge.D.It has a higher bridge ID than the elected root bridge.

Refer to the exhibit. Given the output shown from this Cisco Catalyst 2950, what is the most likely reason that interface FastEthernet 0/10 is not the root port for VLAN 2?() A.This switch has more than one interface connected to the root network segment in VLAN 2.B.This switch is running RSTP while the elected designated switch is running 802.1d Spanning Tree.C.This switch interface has a higher path cost to the root bridge than another in the topology.D.This switch has a lower bridge ID for VLAN 2 than the elected designated switch.

以下哪项不是BPDI.J数据包中携带的实现生成树算法的相关信息?——A.Root IDB.IPC.Root Path Cost.D.Port ID

●下面Linux命令中, (62)可用于关闭系统。(62)A. [root@root]#init 0B. [root@root]# init 1C.[root@root]# init 2D. [root@root]#init 3

●在Linux中,可以使用命令(63)来给test文件赋予执行权限。(63)A. [root@root]#chmod -x testB. [root@root]#chmod +x testC. [root@root]#chmod -w testD. [root@root]#chmod +w test

生成树的比较过程中,表明根的字段是().A、root idB、costC、bridge idD、port id

Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree  Protocol IEEE 802.1D? ()A、Designated Root CostB、bridge ID priorityC、max ageD、bridge ID MAC addressE、Designated Root PriorityF、forward delay

In the Cisco FabricPath domain, one switch becomes the root for the multidestination tree. Cisco FabricPath switches compare which three parameters to select the root? ()A、 Root priorityB、 System IDC、 Bridge IDD、 Switch IDE、 Port IDF、 Subswitch ID

Which of the following commands can be used to gain root privileges and profile without initially logging in as root?()A、 su B、 su root C、 su - root D、 su -c "root"

下列选项中,不属于CSS3样式选择器的是()A、root选择器B、empty选择器C、target选择器D、ID选择器

The classic Spanning Tree Protocol (802.1D 1998) uses which sequence of variables to determine the best received BPDU?()A、 1) lowest root bridge id,2)lowest sender bridge id,3)lowest port id,4)lowest root path costB、 1) lowest root path cost,2)lowest root bridge id,3)lowest sender bridge id,4)lowest sender port idC、 1) lowest root bridge id,2)lowest sender bridge id,3)lowest root path cost 4)owest sender port idD、 1) lowest root bridge id,2)lowest root path cost,3)lowest sender bridge id,4)lowest sender port id

Which statement is correct about RSTP port roles?()A、The designated port is the switch port on every nonroot bridge that is the chosen path to theroot bridge. There can be only one designated port on every switch. The designated portassumes the forwarding state in a stable active topology. All switches connected to a given segment listen to all BPDUs and determine the switch that will be the root switch for a particular segment.B、The disabled port is an additional switch port on the designated switch with a redundant link to the segment for which the switch is designated. A disabled port has a higher port ID than the disabled port on the designated switch. The disabled port assumes the discarding state in astable active topology.C、The backup port is a switch port that offers an alternate path toward the root bridge. The backup port assumes a discarding state in a stable, active topology. The backup port will be present on nondesignated switches and will make a transition to a designated port if the current designated path fails.D、The root port is the switch port on every nonroot bridge that is the chosen path to the root bridge. There can be only one root port on every switch. The root port assumes the forwarding state in a stable active topology.

单选题能够将分布交换机配置为生成树的主根交换机的命令是()。Aspanning-tree vlan vlan-id primaryBspanning-tree vlan vlan-id root primaryCspanning-tree root primaryDspanning-tree bridge root

单选题The classic Spanning Tree Protocol (802.1D  1998) uses which sequence of variables to determine the best received BPDU?()Alowest root bridge id;lowest sender bridge id;lowest port id;lowest root path costBlowest root path cost;lowest root bridge id;lowest sender bridge id;lowest sender port idClowest root bridge id;lowest sender bridge id;lowest root path cost;lowest sender port idDlowest root bridge id;lowest root path cost;lowest sender bridge id;lowest sender port id

单选题The classic Spanning Tree Protocol (802.1D 1998) uses which sequence of variables to determine the best received BPDU?()A 1) lowest root bridge id,2)lowest sender bridge id,3)lowest port id,4)lowest root path costB 1) lowest root path cost,2)lowest root bridge id,3)lowest sender bridge id,4)lowest sender port idC 1) lowest root bridge id,2)lowest sender bridge id,3)lowest root path cost 4)owest sender port idD 1) lowest root bridge id,2)lowest root path cost,3)lowest sender bridge id,4)lowest sender port id

单选题Which of the following settings will reduce packet overhead and overall latency in a standalonepoint-to-point bridge deployment?()Aenable concatenation on the non-root bridge onlyBenable concatenation on the root bridge onlyCenable concatenation on both the root bridge and non-root bridgeDenable concatenation on the root bridge and set it as desirable on the non-root bridgeEset concatenation as desirable on the root bridge and enable it on the non-root bridge

多选题In the Cisco FabricPath domain, one switch becomes the root for the multidestination tree. Cisco FabricPath switches compare which three parameters to select the root? ()ARoot priorityBSystem IDCBridge IDDSwitch IDEPort IDFSubswitch ID

单选题The root id is set so that direct login is disabled.  Information must be reviewed relating to when root access was obtained.  In which of the following files is this information located?()A /var/adm/sulog B /var/adm/wtmp C /etc/security/user D /etc/security/failedlogin

单选题Which of the following commands can be used to gain root privileges and profile without initially logging in as root?()A su B su root C su - root D su -c root

单选题Which of the following settings will reduce packet overhead and overall latency in a standalone point-to-point bridge deployment?()Aenable concatenation on the non-root bridge onlyBenable concatenation on the root bridge onlyCenable concatenation on both the root bridge and non-root bridgeDenable concatenation on the root bridge and set it as desirable on the non-root bridgeEset concatenation as desirable on the root bridge and enable it on the non-root bridge

多选题Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree  Protocol IEEE 802.1D? ()ADesignated Root CostBbridge ID priorityCmax ageDbridge ID MAC addressEDesignated Root PriorityFforward delay

多选题Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree ProtocolIEEE 802.1 D?()ADesignated Root CostBbridge ID priorityCmax ageDbridge ID MAC addressEDesignated Root PriorityFforward delay