Frage 1
Frage
What transport protocol is used by DHCP?
Frage 2
Frage
What does ARP map an IP address to?
Antworten
-
the gateway address
-
A NetBIOS name
-
the MAC address
-
A DNS name
Frage 3
Frage
What command you use in Linux to start DHCP service?
Antworten
-
services dhcp start
-
services dhcpd start
-
service dhcp start
-
service dhcpd start
Frage 4
Frage
A DHCP _____________ acts as a proxy for a DHCP server.
Antworten
-
Relay Agent
-
Register
-
Resource Record
-
Client
Frage 5
Frage
From MS Windows command line, a client's DHCP lease can be manually renewed with the _______________ command.
Antworten
-
ipconfig /refresh
-
ifconfig /renew
-
ipconfig /renew
-
ifconfig /refresh
Frage 6
Frage
After 100% of the lease time elapsed without a renewal, the DHCP client will send out a ______________ packet on the network.
Antworten
-
DHCPAck
-
DHCPRequest
-
DHCPDiscover
-
DHCPRequest Broadcast
Frage 7
Frage
Sometimes a client cannot find a DHCP server though it issued a DHCPDiscover packet. When this happens to clients that had no previous lease, Windows clients implement _____.
Antworten
-
AIP
-
Relay Agent
-
DHCPFind
-
APIPA
Frage 8
Frage
To communicate across an Ethernet network, your computer must use its _____ bytes physical addresses.
Frage 9
Frage
In Linux, what file should you consult to check what leases had been given out from the Linux DHCP server?
Frage 10
Frage
What is the name of the configuration file for DHCP in Linux?
Antworten
-
/etc/dhcp/dhcpd.conf
-
/var/lib/dhcpd.conf
-
/usr/sbin/dhcpd.conf
-
/etc/dhcp.config
Frage 11
Frage
What command line utility is built into Windows system to query DNS servers?
Antworten
-
dig
-
DNS active query
-
NSlookup
-
zone
Frage 12
Frage
Which of the following is considered a DNS alias that points to another host?
Frage 13
Frage
The DNS query between DNS servers is a/an _________ query.
Antworten
-
Caching
-
Reverse
-
Recursive
-
Iterative
Frage 14
Frage
What is the host name in the DNS address cse.ucsc.edu?
Frage 15
Frage
Which two records are created by default in a standard primary Forward DNS zone in a DNS server? (Negative marks for incorrect answer)
Antworten
-
SOA (Start of Authority)
-
NS (Name Server)
-
PTR (Pointer Record)
-
Host (Address)
Frage 16
Frage
The root domain in DNS is represented by a:
Frage 17
Frage
An organization responsible for a domain may divide it into subdomain to decentralize administration.
Frage 18
Frage
What command line utility is added to Linux based systems to query DNS servers?
Antworten
-
zone
-
DNS active query
-
NSilookup
-
dig
Frage 19
Frage
When will a WINS client register itself with the WINS server?
Antworten
-
When the clients cache is cleared.
-
When the client is shut down.
-
When the client attempts to connect to a share.
-
When the client is started up.
Frage 20
Frage
You will find NetBIOS names most likely in what type of network environment?
Antworten
-
All Ethernet networks
-
All TCP/IP networks
-
Any network
-
A Microsoft network
Frage 21
Frage
To avoid causing extra DNS traffic, increase security and save processing time you can add a static entry to your ___________.
Antworten
-
ARP cache
-
WINS Configuration
-
Hosts file
-
LMHosts file
Frage 22
Frage
When a DNS zone information is copied to a slave or secondary DNS server, this is referred to as which of the following process?
Antworten
-
host transfer
-
zone transfer
-
static transfer
-
Master transfer
Frage 23
Frage
Which of the following command/utilities can be used to clear the NetBIOS cache on a WINS system?
Antworten
-
net use
-
nbtstat
-
ipconfig
-
net view
Frage 24
Frage
What command would you use from the command line to start the DNS daemon in Linux system (ex: CentOS)?
Antworten
-
service named start
-
service dnsd start
-
service bind start
-
service dns start
Frage 25
Frage
Which DNS resource records are required to locate servers running specific services?
Antworten
-
MX Records
-
NS Records
-
Host Records
-
SRV Records
Frage 26
Frage
What is the configuration file for DNS in Linux?
Antworten
-
/etc/named.conf
-
/etc/dnsd.conf
-
/etc/bind.conf
-
/etc/dns.conf
Frage 27
Frage 28
Frage
If the DNS server does not support ___________, then an administrator must create the host record entries manually.
Frage 29
Frage
Reverse DNS zones are created within the ______________ domain.
Antworten
-
in-addr.rev
-
rev-addr.arpa
-
addr.rev
-
in-addr.arpa
Frage 30
Frage
Like other services DNS consists of a client and a server service. The terminology used for the client is called ______.
Antworten
-
Slave
-
Forwarder
-
Resolver
-
Master
Frage 31
Frage
Match the followings;
Primary DNS or Master
Antworten
-
Authoritative for the domain
-
gets data for its zone from authoritative server through zone transfer
-
only perform queries and all queries have a TTL
Frage 32
Frage
Match the followings;
Cache only server
Antworten
-
Authoritative for the domain
-
gets data for its zone from authoritative server through zone transfer
-
only perform queries and all queries have a TTL
Frage 33
Frage
Match the followings;
Secondary DNS or Slave
Antworten
-
Authoritative for the domain
-
gets data for its zone from authoritative server through zone transfer
-
only perform queries and all queries have a TTL
Frage 34
Frage
Match the definition with its DNS resource record name,
TXT
Antworten
-
comments
-
Hostname to IP mapping
-
IP address of SMTP host
-
alias for an IP with an existing A record
-
lists authoritative DNS servers for zone
-
OS type
-
IP to host lookup
-
keeps info such as TTLs, serial number, e-mail and responsible person
Frage 35
Frage
Match the definition with its DNS resource record name:
MX
Antworten
-
comments
-
Hostname to IP mapping
-
IP address of SMTP host
-
alias for an IP with an existing A record
-
lists authoritative DNS servers for zone
-
OS type
-
IP to host lookup
-
keeps info such as TTLs, serial number, e-mail and responsible person
Frage 36
Frage
Match the definition with its DNS resource record name:
NS
Antworten
-
comments
-
Hostname to IP mapping
-
IP address of SMTP host
-
alias for an IP with an existing A record
-
lists authoritative DNS servers for zone
-
OS type
-
IP to host lookup
-
keeps info such as TTLs, serial number, e-mail and responsible person
Frage 37
Frage
Match the definition with its DNS resource record name:
PTR
Antworten
-
comments
-
Hostname to IP mapping
-
IP address of SMTP host
-
alias for an IP with an existing A record
-
lists authoritative DNS servers for zone
-
OS type
-
IP to host lookup
-
keeps info such as TTLs, serial number, e-mail and responsible person
Frage 38
Frage
Match the definition with its DNS resource record name:
A
Antworten
-
comments
-
Hostname to IP mapping
-
IP address of SMTP host
-
alias for an IP with an existing A record
-
lists authoritative DNS servers for zone
-
OS type
-
IP to host lookup
-
keeps info such as TTLs, serial number, e-mail and responsible person
Frage 39
Frage
Match the definition with its DNS resource record name
CNAME
Antworten
-
comments
-
Hostname to IP mapping
-
IP address of SMTP host
-
alias for an IP with an existing A record
-
lists authoritative DNS servers for zone
-
OS type
-
IP to host lookup
-
keeps info such as TTLs, serial number, e-mail and responsible person
Frage 40
Frage
Match the definition with its DNS resource record name:
SOA
Antworten
-
comments
-
Hostname to IP mapping
-
IP address of SMTP host
-
alias for an IP with an existing A record
-
lists authoritative DNS servers for zone
-
OS type
-
IP to host lookup
-
keeps info such as TTLs, serial number, e-mail and responsible person
Frage 41
Frage
Match the definition with its DNS resource record name:
HINFO
Antworten
-
comments
-
Hostname to IP mapping
-
IP address of SMTP host
-
alias for an IP with an existing A record
-
lists authoritative DNS servers for zone
-
OS type
-
IP to host lookup
-
keeps info such as TTLs, serial number, e-mail and responsible person