Client host name must exist in the DHCP database on the server.. Which two are executed on the DHCP server for the DHCP client to obtain an IP address.. DHCP supports clients that boot o
Trang 1QUESTION NO: 1
You have used the appropriate startup scrip in /etc/init.d to start the NTP daemon However, the NTP daemon does not start up
There is no error message
What is the reason for this?
A There is no configuration file
B rpcbind is not running on the machine
C The configuration file contains faulty entries
D The NTP daemon cannot contact an NTP server
Trang 2A Modify DHCP clients and disable RARP
B Set the IGNORE_FAILED_ARP variable to no
C Ensure that the client interface is set to NOARP
D Set the IGNORE_FAILED_ARP variable to yes
Which causes a DHCP client to use its own host name?
A Removal of the /etc/dhcp.hme0 file
B The appropriate entry in the /etc/hostname.hme0 file
C Commenting out the RELEASE_ON_SIGTERM=yes parameter
D Client host name must exist in the DHCP database on the server
Answer: B
QUESTION NO: 8
Given the portion of in.dhcpd output running in debug mode:
Trang 33cdbc114: There is no 192.6.17.0 dhcp-network table
3cdbc114: Datagram received on network device: hme0
Which two are executed on the DHCP server for the DHCP client to obtain an IP address? (Choose two)
A init 6
B touch /etc/dhcp.hme0
C pntadm –C 192.6.17.0
D ifconfig hme0 dhcp start
E pntadm –r SUNWfiles –f /var/dhcp –A 192.6.17.97 192.6.17.0
Which two are benefits of using DHCP? (Choose two)
A DHCP is a replacement for JumpStart
Trang 4B DHCP servers support BOOTP and RARP clients
C DHCP allows setting up BOOTP and RARP relays
D DHCP on Solaris includes a VPN feature that allows for the dynamic setup of an IP-over-IP tunnel
E DHCP supports clients that boot over a network, effectively replacing the need for RARP and the bootparams file
F DHCP reduces the cost of managing networks by automatic assignment of available IP addresses from a pool of addresses
Answer: E, E
QUESTION NO: 12
A DNS server (the primary) for domainshop.co.uk is having problems delegating authority and responsibility for the subdomain sales.domainshop.co.uk Investigation reveals that the
delegation is not functioning The current origin is domainshop.co.uk
Given the lines from the domainshop.co.uk zone file:
sales in ns centauri.domainshop.co.uk
centauri.domainshop.co.uk in a 194.168.85.2
Which two errors are present? (Choose two)
A The two lines must be separated by a blank line
B The ns should be NS and, therefore, in uppercase
C The name field sales should NOT be terminated with a dot (.)
D The name field of the second line should be terminated with a dot (.)
E the file lacks a PTR record for the NS centauri.domainshop.co.uk
Answer: C, D
QUESTION NO: 13
A DNS server is successfully providing information related to zones for which it is
authoritative A problem occurs when it attempts to resolve addresses in zones for which is not authorative
What is a possible cause of this problem?
A The server has no /etc/resolv.conf file
B The server does NOT support a com domain
C The server has only a single Ethernet interface
D The server has no knowledge of the root level servers
E The server is NOT authoritative for any reverse domains
Answer: D
Trang 5QUESTION NO: 14
Which two statements about the /etc/named.conf file are true? (Choose two)
A It allows nslookup to resolve queries
B It informs a secondary server of the address of the primary
C It configures a primary with the addresses of secondary servers
D It informs in.named which zones it supports as a primary or secondary
Trang 6A Tunneling ensures privacy of data through encryption
B Tunneling allows Ethernet packets to be encapsulated in IPv6 packets
C Tunneling allows for IPv6 datagrams to be routed within IPv4 datagrams
D Tunneling allows for IPv6 networks to be routed over IPv4 network infrastructure
E Tunneling results in faster routing because the router has fewer headers to inspect
Answer: C, D
QUESTION NO: 18
You have configured an IPv6 router which is having problems routing correctly to a default router connected to the Internet You need to investigate the machines routing table and check that the default route is in place You also need to check the ARP cache to see whether the MAC address of the default router has been learned
Which two commands enable you to perform these tasks? (Choose two)
C More efficient routing
D Smaller routing tables
E Eliminates broadcast traffic
Answer: C, E
QUESTION NO: 20
A Solaris router is correctly configured in terms of interfaces and addresses, but is refusing to forward inbound IP datagrams that arrive and travel up its stack to the Internet Layer A network administrator discovers that the routers kernel is configured NOT to forward (route)
IP datagrams
Trang 7Which command enables the router to forward and attempt to route IP datagrams?
A ndd –set /dev/ip ip_ire_status
B ndd –set /dev/ip ip_forwarding 1
C ndd –set /dev/ip ip_forwarding 0
D ndd –set /dev/tcp ip_forwarding 1
E ndd –set /dev/tcp ip_forwarding 0
Answer: B
QUESTION NO: 21
The traceroute command shows routing paths to a given destination
What protocols are used by this diagnostic tool?
Trang 8The address 197.20.71.0 identifies a network that you want to identify with a name
Which file, if edited, will identify the network address with a name?
Trang 9A system boots and has a configured network interface
At minimum, what type of route is automatically added to the routing table?
Which is the meaning of the DEPRECATED interface flag?
A It is used by in.mpathd to detect test addresses
B The interface will ignore any offlining attempts by the if_mpadm command
C The IP address will not be used by applications as source address for outbound packets
D The IP address will not fail over in case of a failure of the corresponding physical interface
Trang 10A ifconfig hme0:2 down
B ifconfig hme0:2 unplumb
C ifconfig hme0 removeif hme0:2
D ifconfig hme0 rmif 192.168.1.2
Trang 11Answer: C, D, F
QUESTION NO: 34
Which three fields can be components of an IP datagram header? (Choose three)
A Transport protocol type
Which command puts a valid entry in the ARP table for workstation host1?
A arp –a host1
Trang 12QUESTION NO: 37
You want to copy a file from the workstation myhost to a workstation called ftphost
Which situation does not require an ARP request to be issued?
A The ARP table on myhost is full
B The ARP table on ftphost is full
C The ARP table entry for ftphost on myhost is complete
D The workstations myhost and ftphost are on the same subnet
Answer: C
QUESTION NO: 38
What can you do to permanently set parameters for the hme interface module so that they are automatically configured on system boot?
A Define parameters in /etc/hostname.hme0
B Define parameters in /kernel/drv/hme.cfg
C Add commands that define the settings to /etc/netconfig
D Add commands that define the settings to a startup script in /etc/rc2.d
A ndd –get /dev/udp ip-forward
B ndd –get /dev/ip ip_forwarding
C ndd –get ip-forwarding /dev/tcp
D ndd –set /dev/ip ip_forwarding 1
E ndd –set /dev/ip ip_forwarding 0
Answer: B
QUESTION NO: 40
Trang 13What is the value (in bytes) of the Maximum Transmission Unit in an Ethernet-II frame?
Which two statements about a Layer 2 switch are true? (Choose two)
A A switch can convert between two different protocol suites
B A switch can connect more than one pair of cable segments simultaneously
C A switch can filter and selectively forward a packet based on the IP address in the packet
D A switch can dynamically connect and disconnect two cable segments without operator intervention
Answer: B, D
Trang 14transmitted to destination host 192.9.9.6
What should you expect to find in the IP header of an outbound datagram?
A Source port number
B Destination port number
In the five-layer TCP/IP model, which two functions does the Network Interface Layer
provide? (Choose two)
A Packet framing
B Cyclic Redundancy Checking
Trang 15C Connections between applications
D Data addressing between networks
You configured an NTP server to use its local undisciplined clock and also an external server
at address 192.20.201.1 Additionally, you created a fudge line:
server 127.127.1.0 prefer
server 192.20.20.1
fudge 127.127.1.0 stratum 12
What is the purpose of the fudge line?
A To ensure that the NTP protocol is currently disabled
B To ensure that the synchronization is checked at 12:00 P.M each day
C To make the xntpd daemon check the clients clock every 12 minutes
D To ensure that the servers local clock is seen as a stratum 12 server
Answer: D
QUESTION NO: 50
The IP address of an NTP stratum 4 server is 192.168.30.30
What entry in this servers NTP configuration file indicates undisciplined local clock usage?
A server 192.168.30.30
B server 127.127.1.0 local
C server 127.127.1.9 prefer
D server 192.168.30.30 local
Trang 16B DNS server on their network
C A firewall to perform NAT for the JumpStart client
D A boot server on the same network as the DHCP server
Trang 17A DHCP server has an IP address of 192.2.9.92
A DNS server has an IP address of 192.10.4.94
The DNS server process is running in debug mode
Given the debug output:
datagram from [192.2.9.92].32883, fd 26 len 44
req: nlookup(dhcp-pge-test.one.edu) id 19496 type=1 class=1
req: found ‘dhcp-pge-test.one.edu’ as ‘one.edu’ (cname=0)
ns_req: answer -> [192.2.9.92].32883 fd=26 id=19496 size=98 rc=3 datagram from [192.2.9.92].32884, fd 26, len 36
req: nlookup(dhcp-pge-test) id 19497 type=1 class=1
req: missed ‘dhcp-pge-test) as “ (cname=0)
What does the debug output indicate?
A Dynamic DNS is NOT currently configured on the DHCP server
B The DNS server has received a forwarded request from another DNS server
C The DNS server has updated its zone files with the IP address of the DHCP server
D The DNS server finds that the requested host name is NOT available for use in the domain
Answer: D
QUESTION NO: 56
Which two tasks involve changes to the dhcptab database? (Choose two)
A Defining an additional symbol
B Changing the definition of a macro
C Tuning the IGNORE_FAILED_ARP parameter
D Updating the pool of IP addresses assigned to clients
E Changing a client macro association so that the client uses a different macro
Answer: A, B
QUESTION NO: 57
Trang 18Which is the only DHCP lease type that allows for an IP address to be leased for a finite period
A DNS server is giving an error for the following SOA record:
@ soa in host1.abc.com root.abc.com.(
What is causing the error?
A The () pair should be {}
B soa must be in upper case
C A serial number of 1002 is too small
D The final “)” must be on a line by itself
E The soa and in fields are in the wrong order
Answer: E
QUESTION NO: 59
A DNS server is not responding to a DNS clients requests
Which four commands can be used in debugging DNS? (Choose four)
A dig
B nslookup
C pkill –INT inetd
D pkill –INT in.inetd
E pkill –USR1 in.named
F pkill –INT in.named
Answer: A, B, E, F
Trang 19B Current servers name
C Current servers host ID
D Current hosts IP address
Answer: A
QUESTION NO: 62
You have created an IPv6 tunnel between two hosts
Which two statements are true about tunneling? (Choose two)
A Tunneled traffic is always encrypted
B Tunneled traffic is always TCP or UDP in IPv6
C IPv6 Solaris tunneling always involves an IP datagram encapsulating an IP datagram
D The IP header of the datagram that has encapsulated the tunneled data contains the source address of the tunnel
E The tunnel source IP address is always the same as the source IP address in the IP header of the tunneled (encapsulated) ip datagram
Answer: C, D
Trang 20QUESTION NO: 63
A hosts IPv6 link-local unicast address is based on the hosts Ethernet address The beginning
of the address is prefixed by a specific Format Prefix (FP) value to indicate that the address is a link-local address In addition, a 16-bit code is inserted in 64-bit Interface ID portion of the IPv6 address to enable a 48-bit Ethernet address to become 64 bits in length
Which value represents the 16-bit code?
Which protocol does IPv6 use to discover MAC addresses?
A Auto Configuration Protocol
B Network Detection Protocol
C Neighbor Discovery Protocol
D Address Resolution Protocol
Which two are reasons to use Classless Interdomain Routing (CIDR)? (Choose two)
A To reduce the size of routing tables
B To support IPv4 and IPv6 on the same network
Trang 21C To deal with the shortage of Class B IP addresses
D To make maximum use of entries in the ARP cache
E To reduce the number of routers required in a network
A workstation does not have access to the 200.20.50.0 network A system administrator needs
to enable access to a host at IP address 200.20.50.100 Other hosts on the same network must remain inaccessible
Which command accomplishes this?
A route add myrouter 200.20.50.100.0
B netstat –a 200.20.50.100.200.20.50.0
C route add net 200.20.50.100 myrouter 1
D route add host 200.20.50.100 myrouter 1
E ifconfig –a qfe2 200.20.50.100 broadcast 200.20.50.255
Answer: D
QUESTION NO: 69
Given:
route add host lion tiger 1
Which two statements are true? (Choose two)
A The command adds a static route to the routing table
B The command indicates that tiger is an intermediate host on this route
Trang 22C The command causes hosts tiger and lion to update their routing tables
D All hosts on the lion network could be reached as a result of the command
E The command indicates that lion is the only intermediate host on this route
Which two are benefits of using IP Multipathing (IPMP)? (Choose two)
A IPMP provides additional security against network intrusion attacks
B IPMP allows the sending of packets to one host through different routers
C IPMP allows for online deconfiguration and unplugging of network interfaces
D IPMP is an enhanced successor product to Sun Trunking, included in the Solaris OE
E IPMP provides packet-by-packet outbound load spreading for one single network connection
F IPMP enables the Solaris 9 Operating Environment to recover from network interface
DEPRECATED,IPv4,NOFAILOVER> mtu 1500 index 2
inet 192.168.1.50 netmask ffffff00 broadcast 192.168.1.255
Trang 23hme1: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 3 inet 192.168.1.45 netmask ffffff00 broadcast
192.168.1.255
ether 8:0:20:ac:9b:21
Which two commands need to be executed to properly implement multipathing? (Choose two)
A ifconfig hme1 group mgrp-one
B eeprom local-mac-address?=true
C ifconfig hme1 plumb 192.168.1.45 netmask + broadcast + group mgrp-one up
D ifconfig hme0 addif 192.168.1.50 deprecated netmask
Trang 24QUESTION NO: 75
Which three statements about fragmentation are true? (Choose three)
A The fragment size is determined by the MTU size of the network interface layer
B The fragment size always remains constant for a packet across all networks through which the packet passes
C Fragmentation is a mechanism for dividing a class of IP addresses to allow more efficient use
of the address space
D Fragmentation occurs, when necessary, at each router a packet passes through based on the MTU for the interface
E Fragmentation is a mechanism for dividing data where the volume of data is more than can be transmitted in a single packet
F Fragmentation only applies when the upper layer protocol is TCP because TCP delivers a continuous stream of data that must be fragmented
Answer: A, D, E
QUESTION NO: 76
A printer is connected to the same subnet as your workstation The printer is identified as:
A JumpStart client is not configured for DHCP
How does the client obtain its IP address when it boots?
A It does a DNS lookup
B It issues an ARP request
C It issues an RARP request
D It reads the /etc/hosts file
E It reads the /etc/nsswitch.conf file
Answer: C
Trang 25QUESTION NO: 78
You are an administrator for a Web-hosting organization Each Web site your company
supports has its own IP address You want to assign each IP address to its own virtual interface
on your server Your server currently supports more Web sites that the default number of virtual interfaces on Solaris
What command should you use to change the maximum number of configurable virtual
interfaces so that your strategy can be implemented?
What is the purpose of the local-mac-address OBP variable?
A To set the machines Ethernet address
B To store the value of the interfaces Ethernet address
C To allow network cards to use their own Ethernet addresses
D To ensure that the machines default Ethernet address is set
Answer: C
Trang 26A When the IP datagrams are corrupt
B When the TCP segments are corrupt
C When the segments are transmitted out of order
Trang 27D When the IP datagrams that carry the TCP data are fragmented
E When the IP datagrams arrive out of order at the destination end
Which two statements about a service in the client-server model are true? (Choose two)
A A service is provided by a process
B A service is accessed by a process
C A service is started only at system boot
D A service must be listed in /etc/services
E A service always occurs across a network link
Answer: A, B
QUESTION NO: 86
A network administrator configured an NTP server and an NTP client, but the client is
refusing to synchronize with the server The client and server clocks have drifted too much for the xntpd daemon to align them, and for the NTP protocol to synchronize them
Which two tools will synchronize the two systems? (Choose two)
Trang 28What does the NTP term “stratum” refer to?
A The clock precision
B The reference clock
C The local undisciplined clock
D The level of hierarchy in NTP
E The time zone where an NTP server resides
Answer: D
QUESTION NO: 89
A network administrator has correctly configured a DHCP server which is serving JumpStart
an non-JumpStart clients One of the DHCP clients is asking only for an IP address, but NOT for any other parameters such as subnet mask, router, host name, and encapsulated vendor options
A variable must be modified in the /etc/default/dhcpagent file on the client to configure the DHCP clients dhcpagent request additional networking information from the DHCP server Which variable must be modified?
Trang 29QUESTION NO: 90
A DHCP client has been configured with the RELEASE_ON_SIGTERM=yes parameter Which two actions can be taken to force a DHCP client to relinquish the IP address it has obtained through DHCP on hme0? (Choose two)
A Shut down the DHCP client
B Use the dhcpinfo command with the r option
C Use the dhcpagent command with the r option
D Use the command pkill –9 dhcpagent on the client
E Use the stop option of the ifconfig hme0 dhcp command
F Use the release option of the ifconfig hme0 dhcp command
Trang 30QUESTION NO: 93
A DNS server has MX records which indicate that there are three SMTP relays for the domain gvon.com A problem occurs, whereby other DNS servers make iterative queries for the MX records every time they are queried by clients
Which two MX lines cause remote DNS servers to refuse to cache the MX record for SMTP relay smtp.goven.com? (Choose two)
An IPv6 router fails to route properly
Which two commands are most useful in debugging the problem? (Choose two)