Several users are sending emails to CompTIA.org. but they are not being received. Which of thefollowing commands could be used to verify that the company is able to connect to the mailservice at CompTIA.org?（）A、PingB、ArpC、DigD、telnet
Several users are sending emails to CompTIA.org. but they are not being received. Which of thefollowing commands could be used to verify that the company is able to connect to the mailservice at CompTIA.org?（）
- A、Ping
- B、Arp
- C、Dig
- D、telnet
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●Melissa and Love Letter made use of the trust that exists between friends or colleagues.Imagine receiving an (66) from a friend who asks you to open it.This is what happens with Melissa and several other similar email (67) .Upon running, such worms usually proceed to send themselves out to email addresses from the victim's address book,previous emails, web pages (68) .As administrators seek to block dangerous email attachments through the recognition of well-known (69) , virus writers use other extensions to circumvent such protection. Executable (.exe) files are renamed to .bat and .cmd plus a whole list of other extensions and will still run and successfully infect target users.Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the (70) access to your network.(66) A．attachmentB．packetC．datagramD．message(67) A．virtualB．virusC．wormsD．bacteria(68) A．memoryB．cachesC．portsD．registers(69) A．namesB．cookiesC．softwareD．extensions(70) A．crackerB．userC．customerD．client
The Internet is a ()system of interconnected computer networks that use thestandard Internet protocol suite (TCP／IP) to serve several billion users worldwide. A.globalB.regionalC.localD.national
Melissa and LoveLetter made use of the trust that exists between friends or colleagues. Imagine receiving an(71)from a friend who asks you to open it. This is what happens with Melissa and several other similar email(72). Upon running, such worms usually proceed to send themselves out to email addresses from the victim's address book, previous emails, web pages(73)As administrators seek to block dangerous email attachments through the recognition of well-known(74), virus writers use other extensions to circumvent such protection. Executable(.exe)files are renamed to .bat and .cmd plus a whole list of other extensions and will still nm and successfully infect target users.Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the(75)access to your network.A．attachmentB．packetC．datagramD．message
When sending emails to professionals, you should take the time to check your message for spelling errors and to proofread your text.()
Users are unable to stay connected to the company‘s wireless network. Several times throughoutthe day the users‘ signals are dropped and they are forced to reconnect to the network.A technician determines the network cabling that supplies the WAP has been run inside with severalpower lines.Which of the following is the MOST likely cause of the network issue?（）A.AshortB.Open pairsC.ESDD.EMI
Refer to the exhibit. Router RTA has been configured as a DHCP server. The two debug commands will generate output on RTA when Ho st A requests an IP address. Which set of DHCPD debug messages is in the correct sequence?（）A.DHCPD: Sending DHCPOFFER to client DHCPD: DHCPDISCOVER received from client DHCPD: DHCPREQUEST received from client DHCPD: Sending DHCPACK to clientB.DH CPD: DHCPDISCOVER received from client DHCPD: DHCPREQUEST received from client DHCPD: Sending DHCPOFFER to client DHCPD: Sending DHCPACK to clientC.DHCPD: DHCPDISCOVER received from client DHCPD: Sending DHCPOFFER to client DHCPD: DHCPREQUEST received from client DHCPD: Sending DHCPACK to clientD.DHCPD: DHCPREQUEST received from client DHCPD: Sending DHCPOFFER to client DHCPD: DHCPDISCOVER received from client DHCPD: Sending DHCPACK to clientE.DHCPD: Sending DHCPACK to client DHCPD: DHCPD ISCOVER received from client DHCPD: Sending DHCPOFFER to client DHCPD: DHCPREQUEST received from clientF.DHCPD: DHCPDISCOVER received from client DHCPD: Sending DHCPACK to client DHCPD: Sending DHCPOFFER to client DHCPD: DHCPREQUEST received from client
The Internet is a () system of interconnected computer networks that use the standard Internet protocol suits(TCP/IP) to serve several billion users worldwide。A．global B．regional C．local D．national
资料：It's almost considered sacrilegious today to leave work at the end of your workday or（for shamel）on a Friday and simply not check your email until you return the office during normal working hours.The constant need to check email is the trade-off the modern workforce has made for the ability to work anytime, anywhere, thanks to smartphones and tablets that keep us always connected.But three university researchers have found that it's not just doing a bit of work after hours that cause burn out. The true culprit is actually the constant worrying about off-hour email.A new study Exhausted But Unable to Disconnect. by Lehigh University's Liuba Belkin, Virginia Tech’s William Becker and Colorado State University's Samantha Conroy shows that employees are growing exhausted by the expectation that they will always be available, never knowing what kind of work requests will asked of them off hours.Typically, companies don't mean to stress employees out like that. Most companies don't have formal policies that say people must answer work emails after-hours. （expect, perhaps, in cases where an employee is on call during specific times）.But policies and culture tend to be two different things. If supervisors routinely email employee after hours and expect a fast response （often because their supervisors are doing the same to them）, then the message is clear: whenever the boss emails, the employee is expected to be available.The solution is for bosses to tell employees that an after-hours email doesn't necessarily require a response before the next work day, and to also set some times when after-hours emailing is considered acceptable and prohibited, such as no emails via the dinner hour, on weekends, or after 10 p. m, the researchers say.What is this passage mainly about?A.Bosses push employees to work by sending emails anytime.B.Employees are exhausted by the constant need to check emails.C.Companies mean to stress the workers out by sending emails.D.None of above.
You have an Exchange Server 2010 organization.You need to prevent internal users from sending messages that contains the phrase °Company Confidentia?± to external use.What should you create？（）A、a Transport ruleB、a managed folder mailbox policyC、a message classificationD、a Send connector
A users Junos Pulse client uses 802.1X to access a wired network and is failing to authenticate. You run a packet capture from the users PC and notice that immediately after the client machine sends an EAPoL-start packet, an EAP-failure packet is returned. You review the RADIUS troubleshooting logs on the MAG Series device and do not see any authentication attempts from the user. Other users on the same Ethernet switch are successfully authenticating. Which device is sending the EAP-failure packet to the workstation?（）A、The RADIUS serverB、The EAPoL serverC、The workstation's network adapterD、The Ethernet switch
What is the point of using a combiner? （）A、Up to four sites can share one PCM link.B、Several TRXs can share one antenna system.C、The mobile can listen to two base stations at the same time.D、Only one base station is needed per site.E、Sending and transmitting can be performed from the same antenna.
Users are unable to stay connected to the company's wireless network. Several times throughout the day the users' signals are dropped and they are forced to reconnect to the network. A technician determines the network cabling that supplies the WAP has been run inside with several power lines. Which of the following is the MOST likely cause of the network issue?（）A、AshortB、Open pairsC、ESDD、EMI
Several remote sales employees， who have come into the office this week， report that they are unable to get on the Internet， but no other users have reported similar issues. The help desk hasescalated the issue and the case notes state that the users have IP addresses that begin with 169. Which of the following should the system administrator check FIRST？（）A、DHCP serverB、Network switchesC、DNS serverD、Core router
Several users report that they are unable to print to a new printer recently installed. The technician is unable to ping the printer. Which of the following is the MOST likely cause?（）A、No IP address on the printerB、Paper jam in the paper feed trayC、Improper DNS settings on the printerD、Broken LCD screen on the printer
You are the desktop administrator for your company. You connect a print device to a Windows XP Professional computer for the users in the help desk department. You share the printer on the network as HDPrint. You grant the HDUsers and HDManagers groups Allow - Print permission on HDPrint. Several users in the HDUsers group report that it often takes several minutes for their print jobs to print after they are submitted. You investigate and discover that under normal use, the print queue length often exceeds 50 print jobs. You want to improve printing performance for the users in the HDUsers group. What should you do?（） A、Install a second printer that uses the same print device. Share the second printer as HDPrint2. Configure a priority setting of 99 on HDPrint2. B、Increase the print job priority settings to 99 for all print jobs that are submitted by the users in the HDUsers group. C、Connect a second, identical print device to the Windows XP Professional computer. In the properties for HDPrint, select the Enable printer pooling check box. D、In the printer properties for HDPrint, select the Print directly to the printer option and clear the Enable advanced printing features check box.
单选题The Internet is a （）system of interconnected computer networks that use thestandard Internet protocol suite (TCP/IP) to serve several billion users worldwide.AglobalBregionalClocalDnational
单选题You have an Exchange Server 2010 organization.You need to prevent internal users from sending messages that contains the phrase °Company Confidentia?± to external use.What should you create？（）Aa Transport ruleBa managed folder mailbox policyCa message classificationDa Send connector
单选题You have an Exchange Server 2010 Service Pack 1 organization named contoso.com.All users have the contoso.com e-mail address suffix. You discover that both anonymous and authenticated users can post content to a public folder named Folder1 by sending e-mail messages to folder1@contoso.com.You need to prevent all users from posting content to Folder1 by sending e-mail.What should you do？（）AFrom Outlook Web App （OWA）， modify the properties of Folder1.BFrom the Exchange Management Shell， modify the permissions of the default Receive connector.CFrom the Public Folder Management Console， modify the properties of Folder1.DFrom the Exchange Management Console， modify the properties of the Public Folder database.
多选题In the admin GUI, you navigate to "System" "Status" "Active Users". You see several buttons, including "Delete Session", "Delete All Sessions". "Refresh Roles", and "Disable All Users".Which two statements are true?（）ATo forcibly sign out a single user, you should select the check box next to that user's login name, then select Delete Session.BIf you select Delete All Sessions, all users are forcibly signed out and are unable to sign in again until Enable All Users is selected.CSelecting Disable All Users prevents users from signing in and starting a new session, but does not forcibly sign out any users that already have an existing session.DSelecting Refresh Roles re-evaluates authentication policies, role-mapping rules, and resource policies for all existing user sessions.
单选题An organization called contoso.com has Exchange Server 2010.@contoso.com e-mail address suffix. Anonymous and Authorization user can post to a Public Folder named Folder1 by sending e-mail messages to folder1@contoso.com.You need to prevent all users from posting content to folder 1， by sending e-mail.How should you do this？（）ADefault receive connectorBPublic folder management consoleCCreating Transport Protection RulesDIn Exchange Management Console， modify properties of Public Folder database.
多选题You are configuring an SRX210 as a firewall enforcer that will tunnel IPsec traffic from several Junos Pulse users.Which two parameters must you configure on the SRX210?（）Aaccess profileBIKE parametersCtunneled interfaceDredirect policy
单选题You are a Windows Server 2008 systems administrator responsible for configuring FTP Publishing Servicefor use by members of your organization’s engineering department. The name of the server is FTPServer01. Several users have reported that they are able to access most files through the FTP site，but they cannot access the contents of the Drawings folder. You have verified that these users. Windowsaccounts have the correct file system permissions for this folder. You want to minimize the permissionsgranted to all the users. Which of the following changes should you make to enable users to access thisfolder？（）AChange the permissions for the IUSR_FTPServer01 account on the Drawings folder.BCreate new TCP/IP Address Restrictions entries for the users who cannot access the Drawings folder.CDisable the Allow Only Anonymous Connections option.DAdd the users to the local Administrators group on FTPServer02.
单选题An administrator is in charge of several remote servers in Japan. Users call and complain they cannot connect to the company’s resources located on those servers. Which of the following commands would allow the administrator to verify the servers are running？（）ApingBnetstatCnbtstatDtelnet
单选题A users Junos Pulse client uses 802.1X to access a wired network and is failing to authenticate. You run a packet capture from the users PC and notice that immediately after the client machine sends an EAPoL-start packet, an EAP-failure packet is returned. You review the RADIUS troubleshooting logs on the MAG Series device and do not see any authentication attempts from the user. Other users on the same Ethernet switch are successfully authenticating. Which device is sending the EAP-failure packet to the workstation?（）AThe RADIUS serverBThe EAPoL serverCThe workstation's network adapterDThe Ethernet switch
多选题You are the network administrator of a medium-sized company， and users are complaining that they cannot send emails to some organizations. During your troubleshooting， you notice that your DNS MX record is blacklisted by several public blacklist filters. After clearing these listings for your IP address， and assuming that your email server has the right virus protection in place， what are two possible solutions to prevent this from happening in the future？（）AChange your Internet provider.BChange your public IP address.CAllow the email server to send traffic only to TCP port 25.DPut your email server in a DMZ.EUse a separate public IP address for your email server only.
单选题Several users report that they are unable to print to a new printer recently installed. The technician is unable to ping the printer. Which of the following is the MOST likely cause?（）ANo IP address on the printerBPaper jam in the paper feed trayCImproper DNS settings on the printerDBroken LCD screen on the printer
多选题Which two statements accurately describe a role?（）AA role can be given to a maximum of 1000 users.BA user can have access to a maximum of 10 roles.CA role can have a maximum of 100 privileges contained in it.DPrivileges are given to a role by using the CREATE ROLE statement.EA role is a named group of related privileges that can be granted to the user.FA user can have access to several roles, and several users can be assigned the same role.