单选题The data travels from the（）to the INMARSAT Network Coordination Station（NCS）and then down to the SES’s on ships at sea.AVHFBSARTCNAVTEXDLES
单选题
The data travels from the（）to the INMARSAT Network Coordination Station（NCS）and then down to the SES’s on ships at sea.
A
VHF
B
SART
C
NAVTEX
D
LES
参考解析
解析：
暂无解析
相关考题：
All traffic, be it e-mail or streaming video, travels via a method called packet switching, (97)parcels out digital data into small chunks, or packets, and sends them over a network shared bycountless users.A.soB.whichC.andD.who
●Flow control is a function that prevents network congestion by ensuring that (71) do not overwhelm (72) with datA．There are three commonly used methods for handling network congestion ． (73) is used by network devices to temporarily store bursts of excess data in memory until they can be processed． (74) are used by receiving devices to help prevent their buffers from overflowing ． (75) is a flow-control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted．(71)~(72)A．transmitting devicesB．transmitted devicesC．receiving devicesD．received devices(73)~(75) A．BufferB．Source-quench messagesC．BufferingD．Windowing
While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."At which OSI layer is this problem associated with?A．The data link layerB．The application layerC．The access layerD．The session layerE．The network layer
He ____ valuable experience from his travels around the world.A、storedB、gatheredC、understoodD、increased
Personal firewall is a technology that helps(66)intruders from accessing data on your PC via the Internet or another network, by keeping(67)data from entering or exiting your system.Hackers do not just target national security organizations for(68): They want your tax returns, network passwords, or bank account numbers. And you do not want the FBI kicking in your door because someone hijacked your PC to(69)in the latest denial-of-service attack on the Internet. Now that "always-on" broadband connections such as cable modems and digital subscriber line are becoming more popular, home users are at risk. Fortunately, you can protect your data. Firewalls can block(70)attacks and protect your PC from outside threats.A．allowB．preventC．inviteD．get
You are the administrator of a Windows 2000 network. The network includes a Windows 2000 Server computer that is used as a file server. More than 800 of Ezonexam.com's client computers are connected to this server.A shared folder named Data on the server is on an NTFS partition. The data folder contains more than 200 files. The permissions for the data folder are shown in the following table.Type of permission Account PermissionShare Users ChangeNTFS Users Full ControlYou discover that users are connected to the Data folder. You have an immediate need to prevent 10 of the files in the Data folder from being modified. You want your actions to have the smallest possible effects on the users who are using other files on the server.What two actions should you take? (Choose Two)A．Modify the NTFS permissions for the 10 files.B．Modify the NTFS permissions for the Data folder.C．Modify the shared permissions for the Data folder.D．Log off the users from the network.E．Disconnect the users from the Data folder.
While the Internet is inherently insecure, businesses still need to preserve the privacy of data as it travels over the network. To help do that, the Internet Engineering Task Force an international group of network designers, operators, vendors, and researchers concerned with the evolution of(71)has developed a suite of(72)called Internet Protocol Security(IPSec).IPSec creates a standard platform. to develop secure networks and electronic(73)between two machines. Secure tunneling via IPSec creates(74)connections in a network through which data packets can move. It creates these tunnels between remote users and within a local network. It also(75)each data packet in a new packet that contains the information neccessary to set up, maintain and tear down the tunnel when it's no longer needed.A．channelsB．Web browserC．Internet dataD．Internet architecture
Flow control is a function that prevents network congestion by ensuring that(71)do not overwhelm(72)with data. There are three commonly used methods for handling network congestion.(73)is used by network devices to temporarily store bursts of excess data in memory until they can be processed. (74)are used by receiving devices to help prevent their buffers from overflowing.(75)is a flow -control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted.A．transmitting devicesB．transmitted devicesC．receiving devicesD．received devices
Flow control is a function that prevents network congestion by ensuring that(66)do not over-whelm(67)with data. There are three commonly used methods for handling network congestion.(68)is used by network devices to temporarily store bursts of excess data in memory until they can be processed.(69)are used by receiving devices to help prevent their buffers from overflowing.(70)is a flow-control scheme in which the source device requires an acknowledgment from the destination after a certain number of packets have been transmitted.A．transmitting devicesB．transmitted devicesC．receiving devicesD．received devices
What are two recommended ways of protecting network device configuration files from outside network security threats (Choose two.)()。 A.Allow unrestricted access to the console or VTY portsB.Use a firewall to restrict access from the outside to the network devicesC.Always use Telnet to access the device command line because its data is automatically encryptedD.Use SSH or another encrypted and authenticated transport to access device configurationsE.Prevent the loss of passwords by disabling password encryption
The data travels from the ______ to the INMARSAT Network Coordination Station（NCS）and then down to the SES's on ships at sea．A.VHFB.SARTC.NAVTEXD.LES
A company is installing IP phones. The phones and office computers connect to the same device. To ensure maximum throughput for the phone data, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffic. What is the best network device to which to directly connect the phones and computers, and what technology should be implemented on this device? (Choose two.)（）A、hubB、routerC、switchD、STPE、subinterfacesF、VLAN
You are the network consultant from passguide.com. In which situation you will advice your customer to implement data centers?（）A、Protecting the business from information outagesB、Optimizing the efficiency with which IT operatesC、An increased need for specialized IT silosD、IT systems grow fast
The TCP/IP network model differs from the more popular OSI model. Which of the layers below belong to the TCP/IP model?（）A、application layerB、session layerC、transport layerD、internet layerE、network layerF、data link layerG、physical layer
A company is installing IP phones. The phones and office computers connect to the same devicE.To ensure maximum throughput for the phone data, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffiC.What is the best network device to which to directly connect the phones and computers, and what technology should be implemented on this device? （）A、hubB、routerC、switchD、STPE、subinterfacesF、VLAN
While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."At which OSI layer is this problem associated with?（）A、The data link layerB、The application layerC、The access layerD、The session layerE、The network layer
What are three purposes of the RMAN “FROM” clause?（）A、to support PUSH-based active database duplicationB、to support synchronization of a standby database with the primary database in a Data environmentC、To support PULL-based active database duplicationD、To support file restores over the network in a Data Guard environmentE、To support file recovery over the network in a Data Guard environment
You are a help desk technician for your company. Susan is an executive. Because Susan travels frequently, she uses a Windows XP Professional portable computer that has a smart card reader. Susan asks you to configure her computer so that she can dial in to the company network when she is out of the office. Company security policy states that dial-in users must use a smart card when they connect to the network, and that the users must use the strongest form of data encryption possible. Company security policy also states that client computers must disconnect if the Routing and Remote Access server does not support both smart card authentication and the strongest possible authentication. You need to configure the dial-up connection properties on Susan’s computer to dial in to the company network. Your solution must ensure that company security policies are enforced. Which three actions should you perform?（） A、Select the Advanced (custom settings) security option.B、Select the Require data encryption check box. C、Select the Typical (recommended settings) security option. D、Select the Use smart card item from the Validate my identity as follows list.E、Select the Maximum strength encryption item from the Data encryption list.F、Select the Extensible Authentication Protocol (EAP) option, and select Smart Card or other Certificate from the EAP list.
Network Access Protection (NAP) is configured for the corporate network.Users connect to the corporate network by using portable computers.The company policy requires confidentiality of data when the data is in transit between the portable computers and the servers.You need to ensure that users can access network resources only from computers that comply with the company policy.What should you do？（）A、Create an IPsec Enforcement Network policy.B、Create an 802.1X Enforcement Network policy.C、Create a Wired Network (IEEE 802.3) Group policy.D、Create an Extensible Authentication Protocol (EAP) Enforcement Network policy.
You have a computer that runs Windows 7. The computer contains a folder named C:/data. You use Advanced Sharing to share C:/data by using the default share permissions. When a user tries to access theshare over the network, he gets an Access is Denied error message. You need to ensure that the user canaccess the share. What should you do?（）A、Allow file and printer sharing through Windows Firewall.B、Change the network location from a Public network to a Home or Work network.C、From the Security settings of the folder， assign the user the Read NTFS permission.D、From the Advanced Sharing settings of the folder， assign the user the Read share permission.
多选题What are two recommended ways of protecting network device configuration files from outside network security threats (Choose two.)（）。AAllow unrestricted access to the console or VTY portsBUse a firewall to restrict access from the outside to the network devicesCAlways use Telnet to access the device command line because its data is automatically encryptedDUse SSH or another encrypted and authenticated transport to access device configurationsEPrevent the loss of passwords by disabling password encryption
多选题What are three purposes of the RMAN “FROM” clause?（）Ato support PUSH-based active database duplicationBto support synchronization of a standby database with the primary database in a Data environmentCTo support PULL-based active database duplicationDTo support file restores over the network in a Data Guard environmentETo support file recovery over the network in a Data Guard environment
多选题A company is installing IP phones. The phones and office computers connect to the same device. To ensure maximum throughput for the phone data, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffic. What is the best network device to which to directly connect the phones and computers, and what technology should be implemented on this device (Choose two.)（）。AhubBrouterCswitchDSTPEsubinterfacesFVLAN
多选题A company is installing IP phones. The phones and office computers connect to the same devicE.To ensure maximum throughput for the phone data, the company needs to make sure that the phone traffic is on a different network from that of the office computer data traffiC.What is the best network device to which to directly connect the phones and computers, and what technology should be implemented on this device? （）AhubBrouterCswitchDSTPEsubinterfacesFVLAN
单选题To establish a communication channel for the telex service in the INMARSAT-Aterminal, you should first（）.Aestablish a communication channel from the CES, via the International Telex Network to the final destinationBset up a communication channel from your SES, via a satellite, to a CES within your ocean regionCset up a channel directly to the addressee at the destinationDestablish a channel from your terminal , via the International Telex Network to a CES within your ocean region
单选题Certkiller .com has a network that consists of a single Active Directory domain.Windows Server 2008 is installed on all domain controllers in the network. You are instructed to capture all replication errors from all domain controllers to a central location. What should you do to achieve this task（）AInitiate the Active Directory Diagnostics data collector setBSet event log subscriptions and configure itCInitiate the System Performance data collector setDCreate a new capture in the Network Monitor
单选题Network Access Protection （NAP） is configured for the corporate network. Users connect to the corporate network by using portable computers. The company policy required confidentiality of data when the data is in transmit between the portable computers and the servers. You need to ensure taht users can access network resources only from computers that comply with the company policy. What should you do？ （）A Create an IPsec Enforcement Network policyB Create an 802.1X enforcement network policyC Create a wired network （IEEE 802.3） Group PolicyD Create an Extensible Authentication Portocol （EAP） Enforcement Network Policy
多选题You are the network consultant from passguide.com. In which situation you will advice your customer to implement data centers?（）AAn increased need for specialized IT silosBProtecting the business from information outagesCIT systems grow fastDOptimizing the efficiency with which IT operates