A network administrator wants to add a line to an access list that will block only Telnet access by the hosts on subnet 192.168.1.128/28 to the server at 192.168.1.5. What command should be issued to accomplish this task?（）A.access-list 101 deny tcp 192.168.1.128 0.0.0.15 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any anyB.access-list 101 deny tcp 192.168.1.128 0.0.0.240 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any anyC.access-list 1 deny tcp 192.168.1.128 0.0.0.255 192.168.1.5 0.0.0.0 eq 21 access-list 1 permit ip any anyD.access-list 1 deny tcp 192.168.1.128 0.0.0.15 host 192.168.1.5 eq 23 access-list 1 permit ip any any
A network administrator wants to add a line to an access list that will block only Telnet access by the hosts on subnet 192.168.1.128/28 to the server at 192.168.1.5. What command should be issued to accomplish this task?（）
A.access-list 101 deny tcp 192.168.1.128 0.0.0.15 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any any
B.access-list 101 deny tcp 192.168.1.128 0.0.0.240 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any any
C.access-list 1 deny tcp 192.168.1.128 0.0.0.255 192.168.1.5 0.0.0.0 eq 21 access-list 1 permit ip any any
D.access-list 1 deny tcp 192.168.1.128 0.0.0.15 host 192.168.1.5 eq 23 access-list 1 permit ip any any
相关考题：
Refer to the exhibits. Router B should advertise the network co nnected to the E0/0/0 interface to router A and block all other network advertisements. The IP routing table on router A indicates that it is not receiving this prefix from router B. What is the probable cause of the problem?（）A. An access list on router B is causing the 192.168.3.16/28 network to be deniedB. An access list on router B is causing the 192.168.3.32/28 network to be deniedC. The distribute list on router B is referencing a numbered access list that does not exist on router BD. The d istribute list on router B is referencing the wrong interface
You wish to limit telnet access into your Cisco router to only a single host. In order to accomplish this, access list 1 has been written to allow host 172.16.1.224 access to the router vty lines.What command would assign this access- list to the Virtual Terminal Lines?（）A. router(config-line)# ip access-group 1 inB. router(config-line)# access-class 1 inC. router(config-line)# ip access-list 1 inD. router(config-line)# access-line 1 in
A network administrator needs to allow only one Telnet connection to a router. For anyone viewing the configuration and issuing the show run command, the password for Telnet access should be encrypted. Which set of commands will accomplish this task?（）A.B.C.D.
A network administrator is configuring ACLs on a cisco router, to allow affic from hosts on networks 192.168.146.0,192.168.147.0,192.168.148.0 and 192.168.149.0 only.Which two ACL statements when combined are the best for accomplishing the task?（）A.access-list 10 permit ip 192.168.147.0 0.0.0.255.255B.access-list 10 permit ip 192.168.149.0 0.0.0.255.255C.access-list 10 permit ip 192.168.146.0 0.0.0.0.255D.access-list 10 permit ip 192.168.146.0 0.0.1.255E.access-list 10 permit ip 192.168.148.0 0.0.1.255F.access-list 10 permit ip 192.168.146.0 255.255.255.0
Why would a network administrator configure port security on a switch()。 A.to prevent unauthorized Telnet access to a switch portB.to limit the number of Layer 2 broadcasts on a particular switch portC.to prevent unauthorized hosts from accessing the LAND.to protect the IP and MAC address of the switch and associated portsE.to block unauthorized access to the switch management interfaces over common TCP ports
Refer to the exhibit,a network administrator cannot establish a telnet session with the indicated router.What is the cause of this failure?（）A、A level 5 password is not setB、The vty password is missingC、The console password is missingD、An ACL is blocking Telnet access
A network administrator wants to add a line to an access list that will block only Telnet access by the hosts on subnet 192.168.1.128/28 to the server at 192.168.1.5. What command should be issued to accomplish this task?（）A、access-list 101 deny tcp 192.168.1.128 0.0.015 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any anyB、access-list 1 deny tcp 192.168.1.128 0.0.0.15 host 192.168.1.5 eq 23 access-list 1 permit ip any anyC、access-list 1 deny tcp 192.168.1.128 0.0.0.255 192.168.1.5 0.0.0.0 eq 21 access-list 1 permit ip any anyD、access-list 101 deny tcp 192.168.1.128 0.0.0.240 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any anyE、access-list 101 deny ip 192.168.1.128 0.0.0.240 192.158.1.5 0.0.0.0 eq 23 access-list 101 permit ip any anyF、access-list 101 deny ip 192.168.1.128 0.0.0.15 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any any
Why would a network administrator configure port security on a switch?（）A、To prevent unauthorized Telnet access to a switch port.B、To limit the number of Layer 2 broadcasts on a particular switch port.C、To prevent unauthorized hosts from accessing the LAN.D、To protect the IP and MAC address of the switch and associated ports.E、To block unauthorized access to the switch management interfaces over common TCP ports.
Why would a network administrator configure port security on a switch?（）A、to prevent unauthorized Telnet access to a switch portB、to limit the number of Layer 2 broadcasts on a particular switch portC、to prevent unauthorized hosts from accessing the LAND、to protect the IP and MAC address of the switch and associated portsE、to block unauthorized access to the switch management interfaces over common TCP ports
A network administrator is configuring ACLs on a cisco router, to allow affic from hosts on networks 192.168.146.0,192.168.147.0,192.168.148.0 and 192.168.149.0 only.Which two ACL statements when combined are the best for accomplishing the task?（）A、access-list 10 permit ip 192.168.147.0 0.0.0.255.255B、access-list 10 permit ip 192.168.149.0 0.0.0.255.255C、access-list 10 permit ip 192.168.146.0 0.0.0.0.255D、access-list 10 permit ip 192.168.146.0 0.0.1.255E、access-list 10 permit ip 192.168.148.0 0.0.1.255F、access-list 10 permit ip 192.168.146.0 255.255.255.0
A network administrator wants to add a line to an access list that will block only Telnet access by the hosts on subnet 192.168.1.128/28 to the server at 192.168.1.5.What command should be issued to accomplish this task？（）A、access-list 101 deny tcp192.168.1.1280.0.0.15192.168.1.50.0.0.0eq23 access-list 101 permit ip any anyB、access-list 101 deny tcp192.168.1.1280.0.0.240192.168.1.50.0.0.0eq23 access-list101permit ip any anyC、access-list 1 deny tcp192.168.1.1280.0.0.255192.168.1.50.0.0.0eq21 access-list1permit ip any anyD、access-list 1 deny tcp192.168.1.1280.0.0.15host192.168.1.5eq23 access-list1permit ip any any
A network administrator has configured access list 172 to prevent Telnet and ICMP traffic from reaching a server with the address if 192.168.13.26. Which command can the administrator issue to verify that the access list is working properly?（）A、Router# ping 192.168.13.26B、Router# debug access-list 172C、Router# show open ports 192.168.13.26D、Router# show access-listE、Router# show ip interface
11. public void addStrings（List list） { 12. list.add（”foo”）； 13. list.add（”bar”）； 14. } What must you change in this method to compile without warnings？（） A、 add this code after line 11： list = （List） list；B、 change lines 12 and 13 to： list.add（”foo”）； list.add（”bar”）；C、 change the method signature on line 11 to： public void addStrings（List extends String list） {D、 change the method signature on line 11 to： public void addStrings（List super String list） {E、 No changes are necessary. This method compiles without warnings.
You work as an Exchange Administrator for Xxx Inc.The company has a Windows 2008 Active Directorybased network.The network contains an Exchange Server 2010 organization.The Exchange environment has two Edge Transport servers and two Hub servers.The CTO wants you to filter a list of IP addresses and requests that you add these IP addresses to the block list. You log into one of the Edge Transport servers and add the list of IPs to the block list.The next day the CTO informs you that the IP addresses he gave you are still able to send messages into the Exchange environment. What changes should you make to ensure these IP addresses are blocked？（）A、Restart the SMTP service.B、Reboot the Edge Transport server.C、Add the list to the second Edge Transport server.D、Restart IIS.
You wish to limit telnet access into your Cisco router to only a single host. In order to accomplish this, access list 1 has been written to allow host 172.16.1.224 access to the router vty lines. What command would assign this access- list to the Virtual Terminal Lines?（）A、router(config-line)# ip access-group 1 inB、router(config-line)# access-class 1 inC、router(config-line)# ip access-list 1 inD、router(config-line)# access-line 1 in
A network administrator wants to add a line to an access list that will block only Telnet access by the hosts on subnet 192.168.1.128/28 to the server at 192.168.1.5. What command should be issued to accomplish this task?（）A、access-list 101 deny tcp 192.168.1.128 0.0.0.15 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any anyB、access-list 101 deny tcp 192.168.1.128 0.0.0.240 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any anyC、access-list 1 deny tcp 192.168.1.128 0.0.0.255 192.168.1.5 0.0.0.0 eq 21 access-list 1 permit ip any anyD、access-list 1 deny tcp 192.168.1.128 0.0.0.15 host 192.168.1.5 eq 23 access-list 1 permit ip any any
An administrator has purchased monitoring software that can be configured to alert administrators when hardware and applications are having issues. All devices are configured with SNMP， but the administrator wants to further secure the SNMP traffic. Which of the following settings would BEST provide additional monitoring security？（）A、Setting up a custom community nameB、Configuring the network to block traffic on port 161C、Configuring the Windows Firewall to block port 161D、Setting SNMP to read only on the devicesE、Installing new MIBs
An administrator wants to proactively collect information on attackers and their attempted methods of gaining access to the internal network. Which of the following would allow the administrator to do this？（）A、NIPSB、HoneypotC、DMZD、NIDS
You need to design a security strategy that will ensure that unauthorized users cannot access personnel data. Your solution must comply with security requirements and the company’s new administrative model.What should you do？（）A、In the Default Domain Policy Group Policy object （GPO） for the corp.woodgrovebank.com domain， add the LA/HRUsers group to the Restricted Groups list. Add only the HR department user accounts to the Allowed Members listB、In the Default Domain Policy Group Policy object （GPO） for the la.corp.woodgrovebank.com domain， add the LA/HRUsers group to the Restricted Groups list. Add only the HR department user accounts to the Allowed Members listC、In the Default Domain Policy Group Policy object （GPO） for the corp.woodgrovebank.com domain， add the LA/HRUsers group and the CORP/Backup Operators group to the Restricted Groups list. Add only the HR department user accounts and the administrator user accounts to the Allowed Members list for each groupD、In the Default Domain Policy Group Policy object （GPO） for the la.corp.woodgrovebank.com domain， add the LA/HRUsers group and the CORP/Backup Operators group to the Restricted Groups list. Add only the HR department user accounts to the Allowed Members list for the LA/HRUsers group. Add only the administrator user accounts to the Allowed Members list for the CORP/Backup Operators group
单选题You work as an Exchange Administrator for Xxx Inc.The company has a Windows 2008 Active Directorybased network.The network contains an Exchange Server 2010 organization.The Exchange environment has two Edge Transport servers and two Hub servers.The CTO wants you to filter a list of IP addresses and requests that you add these IP addresses to the block list. You log into one of the Edge Transport servers and add the list of IPs to the block list.The next day the CTO informs you that the IP addresses he gave you are still able to send messages into the Exchange environment. What changes should you make to ensure these IP addresses are blocked？（）ARestart the SMTP service.BReboot the Edge Transport server.CAdd the list to the second Edge Transport server.DRestart IIS.
单选题A network administrator wants to add a line to an access list that will block only Telnet access by the hosts on subnet 192.168.1.128/28 to the server at 192.168.1.5.What command should be issued to accomplish this task？（）Aaccess-list 101 deny tcp192.168.1.1280.0.0.15192.168.1.50.0.0.0eq23 access-list 101 permit ip any anyBaccess-list 101 deny tcp192.168.1.1280.0.0.240192.168.1.50.0.0.0eq23 access-list101permit ip any anyCaccess-list 1 deny tcp192.168.1.1280.0.0.255192.168.1.50.0.0.0eq21 access-list1permit ip any anyDaccess-list 1 deny tcp192.168.1.1280.0.0.15host192.168.1.5eq23 access-list1permit ip any any
单选题A network administrator wants to add a line to an access list that will block only Telnet access by the hosts on subnet 192.168.1.128/28 to the server at 192.168.1.5. What command should be issued to accomplish this task?（）Aaccess-list 101 deny tcp 192.168.1.128 0.0.0.15 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any anyBaccess-list 101 deny tcp 192.168.1.128 0.0.0.240 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any anyCaccess-list 1 deny tcp 192.168.1.128 0.0.0.255 192.168.1.5 0.0.0.0 eq 21 access-list 1 permit ip any anyDaccess-list 1 deny tcp 192.168.1.128 0.0.0.15 host 192.168.1.5 eq 23 access-list 1 permit ip any any
单选题An administrator wants to limit access of a wireless network without requiring authorized users to enter a password or network key. Which of the following methods would MOST likely be implemented on the wireless network?（）ADisable SSIDBWPACMAC filteringDRAS
单选题A network administrator wants to control which user hosts can access the network based on their MAC address. What will prevent workstations with unauthorized MAC addresses from connecting to the network through a switch?（）ABPDUBPort securityCRSTPDSTPEVTPFBlocking mode
单选题A network administrator wants to add a line to an access list that will block only Telnet access by the hosts on subnet 192.168.1.128/28 to the server at 192.168.1.5. What command should be issued to accomplish this task?（）Aaccess-list 101 deny tcp 192.168.1.128 0.0.015 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any anyBaccess-list 1 deny tcp 192.168.1.128 0.0.0.15 host 192.168.1.5 eq 23 access-list 1 permit ip any anyCaccess-list 1 deny tcp 192.168.1.128 0.0.0.255 192.168.1.5 0.0.0.0 eq 21 access-list 1 permit ip any anyDaccess-list 101 deny tcp 192.168.1.128 0.0.0.240 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any anyEaccess-list 101 deny ip 192.168.1.128 0.0.0.240 192.158.1.5 0.0.0.0 eq 23 access-list 101 permit ip any anyFaccess-list 101 deny ip 192.168.1.128 0.0.0.15 192.168.1.5 0.0.0.0 eq 23 access-list 101 permit ip any any
单选题Why would a network administrator configure port security on a switch（）。Ato prevent unauthorized Telnet access to a switch portBto limit the number of Layer 2 broadcasts on a particular switch portCto prevent unauthorized hosts from accessing the LANDto protect the IP and MAC address of the switch and associated portsEto block unauthorized access to the switch management interfaces over common TCP ports
多选题An administrator has purchased monitoring software that can be configured to alert administrators when hardware and applications are having issues. All devices are configured with SNMP, but the administrator wants to further secure the SNMP traffic. Which of the following settings would BEST provide additional monitoring security?（）ASetting up a custom community nameBConfiguring the network to block traffic on port 161CConfiguring the Windows Firewall to block port 161DSetting SNMP to read only on the devicesEInstalling new MIBs
多选题A network administrator has configured access list 172 to prevent Telnet and ICMP traffic from reaching a server with the address if 192.168.13.26. Which command can the administrator issue to verify that the access list is working properly?（）ARouter# ping 192.168.13.26BRouter# debug access-list 172CRouter# show open ports 192.168.13.26DRouter# show access-listERouter# show ip interface