In addition mobile users also expect to connect to the （） for communications and access to services （） the best suitable connection,any where and at anytime.A、internet B、server C、LAN D、database A、through B、from C、at D、of
In addition mobile users also expect to connect to the （） for communications and access to services （） the best suitable connection,any where and at anytime.
A、internet B、server C、LAN D、database A、through B、from C、at D、of
相关考题：
As they access the corporate network, mobile and remote users inadvertently can infect the network with(72) and worms acquired from unprotected public networks.A．virusesB．diseaseC．germsD．sickness
With the explosive popularity of mobile devices, we have witnessed a steady increase in demand for mobile date service. In addition mobile users also expect to connect to the Internet for communicate and access to services through the best suitable connection, anywhere and at anytime. Although the seamless roaming capability is well supported in conventional. Cellular communication networks, roaming and interworking technologies are still immature in heterogenous wireless networks. Seamless roaming over heterogenous wireless networks will be an ongoing and improved process, due to the requirements from both end users and network administrators. From the wireless access networks belonging to different administrative domains, mobile users cannot always identify at every instance which network is the best one to access for their service. It is highly demanded to establish a network architecture which can facilitate mobile terminals to access the appropriate network in a cost-effective way. If a mobile user wants to move from one network to another with continuous service, the terminals have to cope with network change to maintain service seamlessly. Quality of service is a major issue that the end users should be provided with the satisfying service, while the network workload and cost should not too much increased. In addition, since end users are provided with numerous service ranging from Voice-over-IP to Video-on-Demand services, it is expected that users can experience the same quality for all the different service. Therefore, the network architecture need to be designed in such a way that the quality mechanism is incorporated so that users are served according to their individual QoS requirements. Based on the paragraph above, at present, seamless roaming over heterogenous wireless network is () in conventional cellular communication networks, Because of (), mobile users cannot always identify at every instance which network is the best one to access for their services. To satisfy the users QoS requirements, the network architecture design should include () A.better thanB.maturer thanC.as good asD.not as good as49.A.the different network administrative domainsB.the same network administrative domains and mobile usersC.mobile usersD.the same network administrative domains50.A.Voice -over -IPB.the quality mechanismC.workloadD.Video-on-Demand请帮忙给出每个问题的正确答案和分析，谢谢！
Circuit-switching technology is used in Publish Switched Telephone Network(PSTN), Global System for Mobile Communications(GSM) and code Division Multiple Access (CMDA) .It is a ( ) information transfer mode.A.connection orientedB.connectionlessC.high bandwidth utilizationD.poor real-time
Circuit-switching technology is used in Public Switched Telephone Network（PSTN）, Global System for Mobile Communications（GSM） and Code Division Multiple Access（CDMA）. It is a （ ） information transfer mode.A.Connection orientedB.connectionlessC.High bandwidth utilizationD.Poor-real-time
As they access the corporate network, mobile and remote users inadvertently can infect the network with （ ）and worms acquired from unprotected public networks.A. sicknessB. diseaseC. GermsD. Viruses
GSM是以下哪个的简称（）A、Global System for Mobile communicationsB、Global Standard for Mobile cellularC、General Standard for Mobile cellularD、General System for Mobile communications
Which two benefits does Cisco Unified CallConnector provide to customer communications?（）A、status of coworkers before placing a callB、Connect feature in Communications Manager ExpressC、IM contacts imported to an IP PhoneD、click-to-dial access only for WebEx meetingsE、Screen Pops for incoming calls
Which of the following is true regarding NetWare Directory Services （NDS） configuration？（）A、Remote users can access the tree through dial-in connections.B、Mobile users do not require changing the NDS name context.C、Remote users do not require a special NDS object entry.D、There are no differences between mobile users and remote users.
When is the site-to-site remote access model appropriate? （）A、for multiple ISDN connectionsB、for modem concentrated dial-up connectionsC、for a group of users in the same vicinity sharing a connectionD、for use by mobile users
To compete in today's fast-paced competitive environment, organizations are increasingly allowing contractors, partners, visitors and guests to access their internal enterprise networks.These users may connect to the network through wired ports in conference rooms or offices, or via wireless access points. In allowing this open access for third parties, LANs become(6) .Third parties can introduce risk in a variety of ways from connecting with an infected laptop to unauthorized access of network resources to(7)activity. For many organizations, however,the operational complexity and costs to ensure safe third party network access have been prohibitive. Fifty-two percent of surveyed CISOs state that they currently use a moat and castle's security approach, and admit that defenses inside the perimeter are weak. Threats from internal users are also increasingly a cause for security concerns. Employees with malicious intent can launch (8) of service attacks or steal (9) information by snooping the network. As they access the corporate network, mobile and remote users inadvertently can infect the network with (10) and worms acquired from unprotected public networks. Hackers masquer-ading as internal users can take advantage of weak internal security to gain access to confidential information.空白处（9）应选择（）A、reservedB、confidentialC、completeD、mysterious
Your Network contains a single AD Site.You install 10 new Exchange Server 2010 CAS.All servers are configured to use a wildcard certificate.Users connect to their Mailboxes by using Windows Mobile 6.5 devices.All devices are configured to connect to cas.contoso.com.You need to ensure that users can connect to their Mailboxes by using mail.contoso.com. Which cmdlet should you run？（）A、set-activesyncdeviceaccessruleB、set-activesyncmailboxpolicyC、set-activesyncorganizationsettingD、set-activesyncvirtualdirectory
You need to design an e-mail access strategy for remote users. What should you do? （） A、 Instruct remote users to connect to their e-mail by using RPCB、 Instruct remote users to connect to Outlook Web Access by using only HTTPSC、 Instruct remote users to connect to the company network by using PPTP connectionsD、 Instruct remote users to connectd to their e-mail by using RPC over HTTP Configure the HTTP servers to require encryption.
You have an Active Directory domain named contoso.com.You have an Exchange Server 2010 organization that contains a Client Access server named CAS1.Users connect to CAS1 from the Internet by using mail.contoso.com.The organization contains the following mobile clients： （1）Windows Mobile 5.0 （2）Windows Mobile 6.1 （3）Windows Mobile 6.5 You plan to install a certificate on CAS1.You need to ensure that all clients can connect to CAS1 from the Internet by using Exchange ActiveSync.Which name should you include in the certificate？（）A、contoso.comB、CAS1.contoso.comC、EAS.contoso.comD、mail.contoso.com
You are the administrator of an Active Directory domain. All servers run Windows Server 2003. All client computers run Windows XP Professional and are members of the domain.The domain contains a single DNS server named Server1. Root hints are enabled on Server1. Internet access for the company is provided by a Network Address Translation （NAT） server named Server2. Server2 is connected to the Internet by means of a permanent connection to the company’s ISP.Users report that they can no longer connect to http：//www.adatum.com. Users can connect to internal resources and to other Internet Web sites. You can successfully access http：//www.adatum.com from a computer outside of the corporate network.You need to ensure that the users can access http：//www.adatum.com. You must also ensure that users retain their ability to access internal resources. Which two actions should you perform？（）A、Disable Routing and Remote Access on Server2.B、Create a root zone on Server1.C、On all affected users’ computers， run the ipconfig /flushdns command.D、Configure all affected users’ computers to use the ISP’s DNS server.E、Use the DNS console on Server1 to clear the DNS cache.
单选题You need to design a security strategy for a remote e-mail access. What should you do？（）ARequire remote users to access e-mails by using Outlook Mobile AccessBRequire Outlook Web Access users to install the secure MIME ActiveX-Control and to encrypt all messagesCOn Outlook Web Access servers that accept connections from the Internet configure IIS to require SSL for all connectionsDOn Outlook Web Access servers that accept connections from the Internet configure IIS to require Integrated Windows Authentication
单选题Circuit-switching technology is used in Publish Switched Telephone Network(PSTN), Global System for Mobile Communications(GSM) and code Division Multiple Access (CMDA) . It is a ( ) information transfer mode.Aconnection orientedBconnectionlessChigh bandwidth utilizationDpoor real-time
单选题When is the site-to-site remote access model appropriate? （）Afor multiple ISDN connectionsBfor modem concentrated dial-up connectionsCfor a group of users in the same vicinity sharing a connectionDfor use by mobile users
单选题ou need to configure fine-grained access control to external network resources from within your database. You create an access control list （ACL） using the DBMS_NETWORK_ACL_ADMIN package. Which statement is true regarding the ACL created？（）A It is a list of remote database links stored in the XML file that are available to the users of the database.B It is a list of users and network privileges stored in the XML file according to which a group of users can connect to one or more hosts.C It is a list of users and network privileges stored in the data dictionary according to which a group of users can connect to one or more hosts.D It is the list of the host names or the IP addresses stored in the data dictionary that can connect to your database through PL/SQL network utility packages such as UTL_TCP.
单选题When is the site-to-site remote access model appropriate？ （）A for multiple ISDN connectionsB for modem concentrated dial-up connectionsC for a group of users in the same vicinity sharing a connectionD for use by mobile users
单选题You have an Exchange Server 2010 organization that contains five Mailbox servers and five Client Access servers.All users in the organization connect to their mailboxes by using Outlook Anywhere.You create a Client Access server array.You need to ensure that all users can connect to the Client Access server array.What should you do？（）AFrom the Exchange Management Shell， run the Set-Mailbox cmdletBFrom the Exchange Management Shell， run the Set-MailboxDatabase cmdletCFrom the Exchange Management Console （EMC）， modify the properties of each mailbox databaseDFrom the Exchange Management Console （EMC）， modify the properties of each Client Access server object
单选题You have an Active Directory domain named contoso.com.You have an Exchange Server 2010 organization that contains a Client Access server named CAS1.Users connect to CAS1 from the Internet by using mail.contoso.com.The organization contains the following mobile clients： （1）Windows Mobile 5.0 （2）Windows Mobile 6.1 （3）Windows Mobile 6.5 You plan to install a certificate on CAS1.You need to ensure that all clients can connect to CAS1 from the Internet by using Exchange ActiveSync.Which name should you include in the certificate？（）Acontoso.comBCAS1.contoso.comCEAS.contoso.comDmail.contoso.com
多选题You need to design the network to support the company’s VPN requirements for mobile users who connect to the network in Seattle. Which two actions should you perform？（）AUse a password generator application to create a preshared key， and distribute it to all mobile usersBUse computer autoenrollment to create digital certificates that can be used to authenticate to a VPN serverCAcquire a digital certificate that can be used for SSL from a commercial CA for each computer that established a VPN connectionDConfigure IPSec policies on all Routing and Remote Access servers to require the use of digital certificates
单选题You work as the enterprise exchange administrator at Company.com.The Company.com network consists of a single Active Directory domain named Company.com.Company.com has an Exchange Server 2010 organization.the Company.com contains an exchange server 2010 client access server named -ex13.The mobile clients at Company.com are configured to either run windows mobile 5.0， windows mobile 6.1 or windows mobile 6.5.the mobile users use the internet to connect to -ex13， using mail.Company.com.you have received instructions from the cio to equip -ex13 with a certificate.however， the mobile users need to connect to -ex13 from the internet via exchange activesync.What should you do？（）AYou should consider including Company.com in the certificate.Byou should consider including -ex13.Company.com in the certificate.CYou should consider including EAS.Company.com in the certificate.DYou should consider including mail.Company.com in the certificate.
单选题Your Network contains a single AD Site.You install 10 new Exchange Server 2010 CAS.All servers are configured to use a wildcard certificate.Users connect to their Mailboxes by using Windows Mobile 6.5 devices.All devices are configured to connect to cas.contoso.com.You need to ensure that users can connect to their Mailboxes by using mail.contoso.com. Which cmdlet should you run？（）Aset-activesyncdeviceaccessruleBset-activesyncmailboxpolicyCset-activesyncorganizationsettingDset-activesyncvirtualdirectory
单选题Which of the following is true regarding NetWare Directory Services （NDS） configuration？（）ARemote users can access the tree through dial-in connections.BMobile users do not require changing the NDS name context.CRemote users do not require a special NDS object entry.DThere are no differences between mobile users and remote users.