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MCSA WINDOWS SERVER 2016 FINAL EXAM
PRACTICE
In CIDR notation, the subnet mask 255.255.255.0 is represented by what prefix? a. / b. / c. / d. /21 - Answers - c. / Which of the following best describes when a packet is addressed so that more than one destination can receive it and the first octet is in the range 224 to 239? a. link-local b. broadcasting c. unicasting d. multicasting - Answers - d. multicasting ICMP is a Network-layer protocol the ping program uses to test whether a computer can communicate with another computer. True or False? - Answers - True What command line utility can be used to display the default route, as well as all routing table entries? a. route b. net print route c. show route d. ipconfig - Answers - a. route The decimal number 168 can be represented using what series of binary digits below? a. 10111000 b. 10011010 c. 11001000 d. 10101000 - Answers - d. 10101000 TCP is a Transport-layer protocol used to communicate between applications, but it's a lightweight Transport-layer protocol, meaning it lacks many of the reliability and flow control features of UDP. True or False? - Answers - False
What protocol in the TCP/IP suite provides reliable data transfer between applications at the Transport layer? a. TCP b. DHCP c. ARP d. UDP - Answers - a. TCP Windows operating systems do not allow you the option to assign multiple IP addresses to a single network connection. True or False? - Answers - False Which of the following is the Physical-layer address that is an integral part of a network interface card? a. Layer 3 address b. Network address c. logical address d. MAC address - Answers - d. MAC address How many bits make up an IPv4 address, versus an IPv6 address? a. 32; 128 b. 48; 128 c. 16; 32 d. 32; 48 - Answers - a. 32; 128 Routing packets is the key responsibility of the TCP protocol. True or False? - Answers - False What specific protocol provides automatic IP address configuration and operates at the Application layer? a. UDP b. TCP c. DNS d. DHCP - Answers - d. DHCP What command displays the route packets take between two computers? a. tracert b. ping c. arp d. ipconfig - Answers - a. tracert
b. / c. / d. /22 - Answers - c. / Which of the following allows the reallocation of bits from the network portion of an IP address to the host portion, combining subnets? a. address resolution b. network masking c. subnetting d. supernetting - Answers - d. supernetting What protocol resolves a computer's IPv4 address to its physical, or Media Access Control (MAC), address? a. Address Resolution Protocol (ARP) b. Dynamic Host Configuration Protocol (DHCP) c. User Datagram Protocol (UDP) d. Domain Name System (DNS) - Answers - a. Address Resolution Protocol (ARP) Which of the following is not a standard component of Teredo tunneling? a. Teredo client b. Teredo server c. Teredo relay d. Teredo proxy - Answers - d. Teredo proxy What ipconfig command line option can be used to delete cached DNS information from memory? a. /reregisterdns b. /releasedns c. /flushdns d. /cleardns - Answers - c. /flushdns A broadcast is a packet addressed to specifically assigned computers on the network. True or False? - Answers - False In a ping response packet, what does the TTL field indicate? a. How many hops the packet can go through before the packet is expired and discarded. b. The amount of time lost in the transit of the packet c. Indicates how long the IP address will be in use by the target computer
d. Indicates how much time was spent looking for the IP address on the network. - Answers - a. How many hops the packet can go through before the packet is expired and discarded. What command can be used to send test queries to a target DNS server? a. nslookup b. ping c. tracert d. route - Answers - a. nslookup Addresses starting with fe80 are called link-local IPv6 addresses. True or False? - Answers - True The Intra-Site Automatic Tunnel Addressing Protocol is used to transmit IPv6 packets between dual IP layer hosts across an IPv4 network. True or False? - Answers - True An iterative query instructs the DNS server to process the query until it responds with an address that satisfies the query or with an "I don't know" message. True or False? - Answers - False DNS audit events track changes to a DNS server such as when zone or resource changes are made. True or False? - Answers - True DNS clients maintain a text file called Hosts that can contain static DNS entries, within what Windows directory is this file stored? a. %systemroot%\drivers b. %systemroot%\System c. %systemroot%\System32\drivers\etc d. %systemroot%\dns\etc - Answers - c. %systemroot%\System32\drivers\etc How should an administrator test the functionality of DNS operation on a domain controller, as well as troubleshoot issues with DNS forwarders, delegation, dynamic updates, and record registration? a. Using DNS Manager b. Using nslookup c. Using dnscm.exe d. Using dcdiag /test:dns - Answers - d. Using dcdiag /test:dns
b. MX c. SRV d. AAAA - Answers - d. AAAA What DNS record type is used to resolve a known IP address to a hostname? a. Pointer Record b. Start of Authority Records c. Canonical Name d. Service Location - Answers - a. Pointer Record What command option for the dnscmd command lists all zones on the server? a. /ipvalidate b. /enumrecords c. /enumzones d. /info - Answers - c. /enumzones What option is available on a Host A record to tell the system how long the record should remain in the database after it was created or last updated? a. Record time stamp b. Stale record c. Time to live d. Update time - Answers - c. Time to live What specific term is best used to describe a computer making a DNS query? a. DNS resolver b. DNS helper c. DNS server d. DNS host - Answers - a. DNS resolver What type of DNS query causes a DNS server to respond with the best information it currently has in its local database? a. Local query b. Extended query c. Iterative query d. Recursive query - Answers - c. Iterative query What type of DNS record is used to contain an alias for another record, allowing for the use of different names for the same host? a. Pointer record b. CNAME record
c. A record d. AAAA record - Answers - b. CNAME record What type of DNS server is a DNS server to which other DNS servers send requests they can't resolve themselves? a. Forwarder server b. Caching-only server c. Authoritative server d. Hierarchical server - Answers - a. Forwarder server What type of DNS server is not configured with any zones, but fields DNS queries and sends iterative queries to upstream DNS servers and stores the results? a. Authoritative server b. Forwarder server c. Hierarchical server d. Caching-only server - Answers - d. Caching-only server When data within a zone changes, what information in the SOA record changes to reflect that the zone information should be replicated? a. Serial number b. Refresh interval c. Minimum TTL d. Retry interval - Answers - a. Serial number Which DNS zone category contains PTR records that map IP addresses to names and is named after the IP network address of the computers whose records it contains? a. Secondary zone b. Reverse lookup zone c. Primary zone d. Forward lookup zone - Answers - b. Reverse lookup zone Which DNS zone type contains a read/write master copy of all resource records for the zone? a. Glue zone b. Primary zone c. Secondary zone d. Stub zone - Answers - b. Primary zone Which Windows command line utility below can be used to check for resource records on a server, verify delegations, verify resource records needed for AD replication, and perform e-mail connectivity tests?
a. queried transfer policy b. query resolution policy c. query DNS policy d. DNS resolution policy - Answers - b. query resolution policy What automatically created subdomain holds all the SRV records for Microsoft-hosted services, such as the global catalog, LDAP, and Kerberos? a. _services b. _msdcs c. _mssrv d. _srv - Answers - b. _msdcs What feature in Windows Server 2016 is used to provide information about the certification authority (CA) used by your domain when a client is requesting DNS information for your domain? a. RRL b. DNSSEC c. NSEC d. DANE - Answers - d. DANE What option in the Zone Aging/Scavenging Properties dialog box will prevent DNS record time stamps from being updated too often? a. The zone can be scavenged after b. Scavenge stale resource records c. No-refresh interval d. Refresh interval - Answers - c. No-refresh interval What port is used by DNS servers to issue queries? a. UDP 54 b. TCP 54 c. UDP 53 d. TCP 53 - Answers - c. UDP 53 What specific type of DNS attack uses public DNS servers to overwhelm a target with DNS responses by sending DNS queries with spoofed IP addresses? a. DNS amplification attack b. DNS service attack c. DNS proxy attack d. DNS IP spoofing - Answers - a. DNS amplification attack
What type of zone contains only an SOA record, one or more NS records, and the necessary glue A records to resolve NS records? a. Primary zone b. Stub zone c. Secondary zone d. Tertiary zone - Answers - b. Stub zone When a subdomain has been delegated to a zone on another server, the DNS server hosting the parent zone maintains only an NS record pointing to the DNS server hosting the delegated zone. True or False? - Answers - True Which PowerShell cmdlet displays the records in the DNS server cache, including the name, record type, timestamp, TTL, and record data? a. Show-DnsCache b. Show-DnsServerCache c. Get-DnsServerCache d. Get-DnsCache - Answers - b. Show-DnsServerCache Which feature is used to protect against DNS cache poisoning? a. DNS recursion b. Iterative queries c. Referrals d. Socket pool - Answers - d. Socket pool Which of the following is a DNS record that is no longer valid either because the resource is offline for an extended period or permanently or because the resource's name or address has changed? a. invalid resource record b. offline resource record c. used resource record d. stale resource record - Answers - d. stale resource record Zone control is the transfer of authority for a subdomain to a new zone. True or False? - Answers - False A DHCP server sends information back to a client on what UDP port? a. 68 b. 70
How does a DHCP server respond to an IP request that can not be renewed? a. The server forwards the request b. The server sends a DHCPACK c. The server does not respond d. The server sends a DHCPNACK - Answers - d. The server sends a DHCPNACK If a DHCP server does not respond to a client's first renewal request, how long will the client keep its current address until initiating the next lease renewal request? a. 60% of lease interval expired b. 80% of lease interval expired c. 87.5% of lease interval expired d. 75.5% of lease interval expired - Answers - c. 87.5% of lease interval expired The DHCP options defined at what level take precedence over all other levels? a. Policy options b. Scope options c. Server options d. Reservation options - Answers - d. Reservation options What DHCP option within the DHCPREQUEST packet contains a client's FQDN? a. Option 61 b. Option 60 c. Option 80 d. Option 81 - Answers - d. Option 81 What is the absolute minimum value the DHCP lease duration can be set to? a. 30 minutes b. 10 minutes c. 1 minute d. 5 minutes - Answers - c. 1 minute What must be done before a Windows DHCP server, with a scope already defined, can begin providing services? a. The server must be updated b. The server must be validated c. The server must be authorized d. The server must be authenticated - Answers - c. The server must be authorized What type of DHCP packet first initiates the IP address request sequence?
a. DHCPDISCOVER b. DHCPACK c. DHCPREQUEST d. DHCPOFFER - Answers - a. DHCPDISCOVER When using WDS, what two DHCP server options must be configured if the DHCP server is on a different server or different subnet from the WDS server? a. 040 and 065 b. 030 and 065 c. 066 and 067 d. 060 and 067 - Answers - c. 066 and 067 Where are DHCP database backups stored by default? a. %systemroot%\System32\dhcp\dhcpbackup.txt b. %systemroot%\System32\dhcp\dhcp.mdb c. %systemroot%\System32\dhcp\DhcpCfg d. %systemroot%\System32\dhcp\backup\DhcpCfg - Answers - d. %systemroot%\System32\dhcp\backup\DhcpCfg You have created a new DHCP scope with address range 192.168.1.1 to 192.168.1.254. You have five servers configured with static addresses in the range 192.168.1.240 to 192.168.1.244. You plan on configuring as many as ten more servers to use static addresses in the range 192.168.1.245 to 192.168.1.254. What should you configure on your scope? a. Exclusion range b. New prefix length c. Different lease duration d. Reservations - Answers - a. Exclusion range You have expanded your current LAN from about 200 hosts to over 350 hosts. The first 200 hosts were getting IP addresses from a scope configured with the address range 10.1.1.1 to 10.1.1.250 with prefix length 24. You don't want to change the IP addressing scheme for the existing hosts, but you need to accommodate all 350 hosts with DHCP- assigned addresses. You don't have any VLANs or routers configured. What should you configure? a. Superscope b. Split-scope c. Multicast scope d. Failover scope - Answers - a. Superscope
d. Multicast scope - Answers - c. Split scope A DHCPDISCOVER message is sent as a unicast packet. True or False? - Answers - False A superscope is a special type of scope that allows a DHCP server to service multiple IPv4 subnets on multiple physical networks, using IPv4 or IPv6. True or False? - Answers - False An administrative scope is composed of multicast addresses intended to be used in a public network. True or False? - Answers - False DHCPv6 uses a DHCP Unique Identifier to lease an address and create reservations. True or False? - Answers - True The DHCP server service can be configured to automatically discard A and PTR records when a lease is deleted. True or False? - Answers - True The Windows Server DHCP relay agent function is configured as part of the Routing role service of the Remote Access server role. True or False? - Answers - True The Vendor Class uses what option field within a DHCPDISCOVER packet? Option 80 Option 81 Option 60 Option 61 - Answers - Option 60 When using WDS, what two DHCP server options must be configured if the DHCP server is on a different server or different subnet from the WDS server? 060 and 067 030 and 065 066 and 067 040 and 065 - Answers - 066 and 067
If a DHCP server does not respond to a client's first renewal request, how long will the client keep its current address until initiating the next lease renewal request? 60% of lease interval expired 80% of lease interval expired 75.5% of lease interval expired 87.5% of lease interval expired - Answers - 87.5% of lease interval expired Select below the predefined option within DHCP that may be necessary for some configurations of Windows Deployment Server? 046 WINS/NBT Node type 044 WINS/NBNS Servers 060 PXEClient 080 WDS config - Answers - 060 PXEClient Where are DHCP database backups stored by default? %systemroot%\System32\dhcp\dhcp.mdb %systemroot%\System32\dhcp\dhcpbackup.txt %systemroot%\System32\dhcp\DhcpCfg %systemroot%\System32\dhcp\backup\DhcpCfg - Answers - %systemroot%\System32\dhcp\backup\DhcpCfg What is the absolute minimum value the DHCP lease duration can be set to? 10 minutes 5 minutes 1 minute 30 minutes - Answers - 1 minute A DHCP server sends information back to a client on what UDP port? 70 69 68 67 - Answers - 68 A DHCPINFORM request sent by a client will receive what message number from a DHCP server? 6 7 8 5 - Answers - 5
Vendor Class NIC GUID - Answers - MAC address What type of DHCP packet first initiates the IP address request sequence? DHCPREQUEST DHCPDISCOVER DHCPACK DHCPOFFER - Answers - DHCPDISCOVER How can a DHCP server be configured to not register A and PTR records if a DNS record with a different name already exists? By enabling the "Always dynamically update DNS records" option. By using the Name Protection option. By enabling the "Discard A and PTR records when lease is deleted" option. By using the "Disable dynamic updates for DNS PTR records" option. - Answers - By using the Name Protection option The DHCP options defined at what level take precedence over all other levels? Reservation options Policy options Server options Scope options - Answers - Reservation options What must be done before a Windows DHCP server with a scope defined can begin providing services? The server must be authenticated The server must be updated The server must be authorized The server must be validated - Answers - The server must be authorized In what server configuration window can the Network Access Protection (NAP) feature be enabled or disabled? IPv4 Properties Option Type Routing and Remote Access Server Setup Wizard New Class - Answers - IPv4 Properties What DHCP option within the DHCPREQUEST packet contains a client's FQDN? Option 61 Option 80
Option 81 Option 60 - Answers - Option 81 How does a DHCP client respond if it determines that a leased IP address is already in use? - Answers - It sends a DHCPDECLINE and requests another address. If both scope level policies and server level policies are configured, which takes precedence if there is a conflict? - Answers - Scope level policies always take precedence over server level policies. You have created a new DHCP scope with address range 192.168.1.1 to 192.168.1.254. You have five servers configured with static addresses in the range 192.168.1.240 to 192.168.1.244. You plan on configuring as many as ten more servers to use static addresses in the range 192.168.1.245 to 192.168.1.254. What should you configure on your scope? a. Exclusion range b. Reservations c. New prefix length d. Different lease duration - Answers - a. Exclusion range You have expanded your current LAN from about 200 hosts to over 350 hosts. The first 200 hosts were getting IP addresses from a scope configured with the address range 10.1.1.1 to 10.1.1.250 with prefix length 24. You don't want to change the IP addressing scheme for the existing hosts, but you need to accommodate all 350 hosts with DHCP- assigned addresses. You don't have any VLANs or routers configured. What should you configure? a. Multicast scope b. Split-scope c. Failover scope d. Superscope - Answers - d. Superscope You have installed a streaming video service on your network. You want selected hosts to be able to access this service via a dynamically assigned class D IP address. What do you need to configure? a. Superscope b. Relay agent c. Multicast scope d. IPv6 Autoconfiguration - Answers - c. Multicast scope You have just installed a DHCP server and created a new scope with the default options. A DHCP client leases an IP address at 8:00am on Monday, February 3rd. When will the client lease expire if it is never renewed?
