4148388
Descripción
Test por Michael Marcus, actualizado hace más de 1 año
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Creado por Michael Marcus
hace más de 8 años
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Pregunta 1
Pregunta
What is another designation for an Alias
Respuesta
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a host or A record
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canonical name or CNAME
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pointer or PTR record
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Name Server or NS record
Pregunta 2
Pregunta
What does Time to Live (TTL) mean in DNS parlance?
Respuesta
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the length of time it takes a DNS query to process
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the length of time required to process an iterative query
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the length of time between zone updates
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the length of time a record remains in DNS cache
Pregunta 3
Pregunta
What is the primary advantage to enabling round-robin DNS?
Respuesta
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load balancing
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speed
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efficiency
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fault tolerance
Pregunta 4
Pregunta
What does issuing the nslookup command with no parameters do on your system?
Respuesta
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It returns an error: Missing paramter
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It places you into nslookup's interactive mode
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It returns you to a prompt with no result
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It displays your DNS query cache
Pregunta 5
Pregunta
You can use the dnscmd command to create zones. What other tasks can you perform with it?
Respuesta
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delete resource records
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start/stop the DNS service
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perform name service queries
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install DNS services
Pregunta 6
Pregunta
Which DNS record contains the serial number for the zone?
Respuesta
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NS record
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A record
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PTR record
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SOA record
Pregunta 7
Pregunta
How are routing tables created dynamically?
Respuesta
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through the use of RIP
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with static routes
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by using the routing table protocol (RTP)
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by using a layer 2 switch
Pregunta 8
Pregunta
Which authentication protocol allows you to change an expired password during the connection process?
Respuesta
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PAP
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CHAP
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MS-CHAPv2
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EAP-MS-CHAPv2
Pregunta 9
Pregunta
Why are phone lines and ISDM not used today for remote access services (RAS)?
Respuesta
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They're too expensive
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They're not secure enough
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They create dedicated access
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They no longer supply acceptable bandwidth
Pregunta 10
Pregunta
How is data verified when transferred through the Internet?
Respuesta
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by cryptogrpahic checksum
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by RAS callback options
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by correct firewall settings
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by using PPTP for VPN connections
Pregunta 11
Pregunta
When is it appropriate to use Windows Server 2012 as a router between two networks?
Respuesta
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for heavy traffic on large networks
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for heavy traffic on small networks
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for light traffic on large networks
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for light traffic on small networks
Pregunta 12
Pregunta
For Dial-up RAS connectivity, what is the most secure setting to use?
Respuesta
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deny access
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a static IP address
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verify caller ID
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always call back to a particular number
Pregunta 13
Pregunta
How can you force a system to update its DNS record?
Respuesta
-
Change IP addresses
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Disable/enable the NIC
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Execute ipconfig /flushdns
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Execute ipconfig /registerdns
Pregunta 14
Pregunta
In Windows Server 2012 R2, what is used as a reverse proxy?
Respuesta
-
Web Application proxy
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Reverse Lookup
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AD FS proxy
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Reverse Web
Pregunta 15
Pregunta
If you have a server named server1.blah.com, want to use it as your web server, and have requests point to www.blah.com what kind of DNS record would you create?
Respuesta
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an A record
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a CNAME record
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a PTR record
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an NS record
Pregunta 16
Pregunta
Which VPN protocol provides constant connectivity?
Respuesta
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L2TP
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IKEv2
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SSTP
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PPTP
Pregunta 17
Pregunta
What is the first thing to check when troubleshooting VPN problems?
Respuesta
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network connectivity
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usernames and passwords
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DNS lookups
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firewall settings
Pregunta 18
Pregunta
Why use a VPN for client-to-server connections over the Internet?
Respuesta
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VPN traffic is protected by a firewall
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VPN traffic is encrypted
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VPN traffic goes undetected on the Internet
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VPN traffic is proxy-proof
Pregunta 19
Pregunta
Before creating PTR records, what DNS objects must you create?
Respuesta
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reverse lookup zones
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CNAME records
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SOA records
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NS records
Pregunta 20
Pregunta
If you have corrected a DNS server problem, such as renamed a system or changed its IP address, but your local system still attempts to connect to the old system, what can you do to obtain the new information from the DNS server quickly?
Respuesta
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Reboot
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Disable/enable the NIC
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Clear the DNS cache on the DNS server
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Execute ipconfig /flushdns.
Pregunta 21
Pregunta
Which of the following is an example of an SRV record?
Respuesta
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DNS server
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AD server
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mail server
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web server
Pregunta 22
Pregunta
A Start of Authority record specifies what kind of information about a zone?
Respuesta
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a list of host or A name
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a list of canonical (CNAME) records
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the zone serial number
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a reverse lookup record
Pregunta 23
Pregunta
which of the following is correct for querying a PTR record?
Respuesta
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nslookup Microsoft.com
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nslookup www.technet.com
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nslookup server1
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nslookup 192.160.3.50
Pregunta 24
Pregunta
What is the purpose of a priority number in MX records?
Respuesta
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to set delivery priority
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to designate primary, secondary and so forth , mail servers
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for fault tolerance
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for mail-routing preference
Pregunta 25
Pregunta
Which command do you use to verify local DNS settings?
Respuesta
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nslookup <dns_servername>
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ipconfig / all
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ping localhost
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tracert <dns_servername>
Pregunta 26
Pregunta
Which authentication method is weakest (least secure)?
Respuesta
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PAP
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CHAP
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MS-CHAPv2
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EAP-MS-CHAPv2
Pregunta 27
Pregunta
Why would you set Verify Caller ID on a remote dial-up connection for a user?
Respuesta
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for enhanced security
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because you don't trust the user
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because you want users to call in only from specific numbers
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because it's the default setting
Pregunta 28
Pregunta
What term is defined as private data placed in a packet with a header containing routing information that allows the data to traverse a transit network, such as the Internet?
Respuesta
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routing
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VPN
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encapsulation
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tunneling
Pregunta 29
Pregunta
What special hardware configuration should a RAS server have?
Respuesta
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two network interface cards
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a dedicated phone line
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a dedicated internet connection
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secure access to the internet
Pregunta 30
Pregunta
Which Windows Server 2012 R2 server role is used to install the Web Application proxy for AD FS?
Respuesta
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AD FS
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remote access
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remote desktop
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web service
Pregunta 31
Pregunta
Setting up a NAT gateway is an excellent way to provide Internet access to a LAN. What is the best reason for setting up Internet access via NAT?
Respuesta
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to allow multiple computers access to the internet
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to provide a type of firewall for a group of computers
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to provide proxy services to a LAN
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to use private IP addresses on the LAN
Pregunta 32
Pregunta
When would you want to use a split tunnel for users?
Respuesta
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if your users work only from the office
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if your users might compromise security by browsing to insecure sites
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if your users have laptop computers and work from home or office
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if your users often need remote assistance
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