TCP/IPNetwork Administration-Solaris™ Operating Environment

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41. What is the size of "preamble"?

a. 64 bits
b. 32 bits
c. 16 bits
d. 128 bits

Answer: a

42. What is a ONC+?

a. Solaris Open Source Windows Manager
b. Sun Microsystem's distributed services
c. Built-in Network Administration Tool
d. A name service very close to FNS

Answer: b

43. Which of the following are Distance Vector Protocols?

a. RIP
b. IS-IS
c. IGRP
d. OSPF

Answer: a,c

44. In order to see all RPC services running on a host, one can issue:

a. rpcinfo -u <server>
b. rpcinfo -p <server>
c. rpcinfo -a <server>
d. netat -a

Answer: b

45. Which command is used to manipulate NIS+ aliases maps?

a. aliasadm
b. nisbladm
c. nisaliases
d. nispladm

Answer: a

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46. In order to "enable" an interface (open it with streams), which parameter is passed with "ifconfig"?

a. enable
b. active
c. start
d. plumb

Answer: d

47. In order to troubleshoot DHCP, which command is appropriate?

a. snoop -o /tmp/dhcplog DHCPACK
b. snoop -o /tmp/dhcpsnoop dhcp dhcp
c. snoop -o /tmp/dhcplog
d. snoop -d /tmp/dhcplog

Answer: b

48. Which are not valid class types for DNS resource records?

a. ZONE
b. MKS
c. TST
d. ACL
e. SOA

Answer: a,b,d

49. Which file is used to determine network number and host number for a given IP?

a. /etc/inet/netmasks
b. /etc/hosts
c. /etc/inet/networks
d. /etc/iptable

Answer: a

50. dhcptab is managed by:

a. dhtadm
b. pntadm
c. dtadm
d. dhcpadm

Answer: a

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51. In order to turn on TCP connection-tracing in inetd, which parameter is used?

a. -r
b. -c
c. -t
d. -d
e. -s

Answer: c

52. What is the term used for a LAN component that describes a device that serves as the center of a star-topology network?

a. Gateway
b. Concentrator
c. Hub
d. Repeater
e. Switch

Answer: c

53. The method of sending a collision signal to put nodes into a wait mode is known as:

a. back-off
b. back-out
c. token
d. back-alert
e. alert

Answer: a

54. How is lease negotiation performed by DHCP?

a. None
b. By dhcp_negotiate command
c. By static timeouts
d. By LeaseNeg Variable

Answer: d

55. Which of the following statements is/are not true about RPC?

a. Can be used with TCP
b. Ensures transport quality
c. RPC services use port 111
d. Can be used with UDP

Answer: b

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56. What is the class reserved for multicasting?

a. A
b. B
c. C
d. D

Answer: d

57. What does a "!" mean in "traceroute" output?

a. The TTL value in received packet is <= 1
b. There is no response within 5 sec
c. The TTL value in received packet is <= 60

Answer: a

58. Which command clears the routing table?

a. route -f -f
b. route flush
c. route delete
d. route clear

Answer: b

59. In order to trace domain name lookups, which option should be passed to in.named?

a. -q
b. -d
c. -a
d. -t

Answer: a

60. Which RPC options provide statistics?

a. -a
b. -m
c. -s
d. -p

Answer:  b,c

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Part 3
This test covers mainly SNMP, network troubleshooting, DNS, and DHCP.
Degree of Difficulty: Hard

1. If the received packet is less than 46 bytes, the packet is too short and discarded. What is this known as?

a. Snoops
b. Jabbers
c. Runts
d. Bad CRC

Answer: c

2. True or False: IPv6 uses a 128-bit address scheme as defined in RFC 2460.

a. True
b. False

Answer: a

3. Why is overall network performance adversely affected by a high number of broadcast messages?

a. Because the broadcase messages are too large for the network to handle
b. Because of the number of users on the network
c. Because every computer on the network doesn't know what to do with the broadcast messages
d. Because every computer on the network must process each broadcast message

Answer: d

4. You test your RG-58A/U (10Base2) cable and get the following resistance readings:
Cable = 0 to infinity
T-connector = infinity
Terminator = 50  
What do you need to do?

a. Check the tester
b. Replace the network card
c. Replace the terminator
d. Replace the cable

Answer: d

5. True or False: A RARP request is a broadcast packet that is generated by a booting diskless client.

a. True
b. False

Answer: b

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6. What device works at the MAC sub-layer of Data Link layer of the OSI Model?

a. Bridge
b. Repeater
c. Multiplexer
d. Switch

Answer: a

7. A transport protocol does what?

a. How the information is transported from on adapter to another
b. Translates system names into addresses. Responsible for addressing, determining routes for sending, managing network traffic items, packet switching,routing, data congestion, and reassembling data.
c. It defines how data should be presented to the next receiving layer, packages the data accordingly, and then passes data to the application through the session layer interface
d. It passes the data to the application

Answer: c

8. All computers on one segment of the network are having problems communicating. You suspect that it is caused by a broadcast storm. You have determined that it is not a hardware problem. What is your first action to resolve the problem?

a. Time-Domain Reflectors (TDRs)
b. Oscillosope
c. Digital Volt Meters (DVM)
d. Use a Network/Protocol analyzer to determine the source of the storm

Answer: d

9. DNS servers consist of?

a. Primary Servers
b. Caching only Server
c. Second Primary Servers
d. Forwarding Servers
e. Secondary Servers

Answer: a,b,d,e

10. Kevin has been assigned a registered class C network address of 193.43.9.0. Six subnets are required. He wants to use the same subnet mask for each router's local interface. Which subnet mask should he use to maximize the number of available nodes at each site?

a. 255.255.255.252
b. 255.255.255.248
c. 255.255.255.254
d. 255.255.248.0

Answer: c

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11. If you measure a thinnet cable via the T connector, what reading should you get?

a. 25 ohms
b. 50 ohms
c. 75 ohms
d. 100 ohms

Answer: a

12. Sun systems would recognize 128.50.0.0 as?

a. Nothing
b. An IP broadcast address
c. An ethernet translation address
d. A class C address
e. A valid host address

Answer: b

13. You are using an ohmmeter to measure the resistance on a coax cable. You receive a reading of 75 ohms. What should you do?

a. Change the terminator
b. Change the T connector
c. Change the cable
d. Change all the cables

Answer: a

14. By default, each IP address managed by DHCP has a lease time of ______.

a. 24 hours
b. 10 hours
c. 2 days
d. 3 days

Answer: d

15. The following are utilities that can be used to query NTP:

a. xntpdc
b. who
c. pers
d. ntpq
e. ntpwhich

Answer: a,d

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16. To help manage your network by checking hubs, routers and bridges, what type of software would you use?

a. RIP
b. Network Analyzer
c. Protocol Analyzer
d. SNMP

Answer: d
SNMP is an open protocol used to read information from and manage network devices.

17. SNMP is used to:

a. Provide network management information
b. Transfer mail
c. Carry ICMP error messages
d. Manage Multiple routing protocols

Answer: a

18. What network transport does SNMP use?

a. IP UDP
b. TCP/IP
c. IP
d. ICMP

Answer: a

19. Select the invalid workstation IP Address:

a. 205.111.256.1
b. 255.200.200.200
c. 127.66.79.111
d. 194.200.50.111

Answer: a,c
256 is invalid and 127.x.x.x is reserved for loopback.

20. An ethernet fragment is a ______ frame.

a. retransmitted
b. damaged
c. broadcast
d. network

Answer: b

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21. True or False: On Sun systems, by default, the Ethernet address is read from PROM's (read only memory) in the system hardware.

a. True
b. False

Answer: a

22. What is IP responsible for?

a. Assisting routing and bridging
b. fragmenting and routing data
c. establishing a connection-oriented circuit
d. performing error detection and correction

Answer: b

23. Which files are required for DNS client-side configuration?

a. /etc/named.boot
b. /etc/resolv.conf
c. /etc/hosts
d. /etc/nsswitch.conf
e. /etc/named.conf

Answer: b,d

24. A Router works at what OSI level?

a. Data Link Layer
b. Network Layer
c. Application Layer
d. Session Layer

Answer: b

25. Which portion of IP address configuration determines a computer's network?

a. DNS configuration
b. Binding
c. Gateway
d. Subnet Mask

Answer:d

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26. Which command shows if a specific server is running on a host?

a. rpcinfo -p server
b. rpcinfo -u server process
c. rpcinfo -b process
d. rpcinfo -d

Answer: b
The command "rpcinfo -b process" will broadcast to the network. However, note, the question asked about a specific host.

27. The DHCP configuration file that allows administrators to tune some RFC parameters is?

a. /etc/default/dhcp.conf
b. /etc/default/dhcpagent
c. /etc/default/dhcp_inittab

Answer: b

28. The file dhcptab contains ______.

a. the lease information for every DHCP client
b. RFC tunable parameters
c. the macro table used for DHCP clients
d. nothing, if the DHCP server is in use

Answer: c

29. ______ creates a dhcptab file.

a. dhtadm -C
b. dhtadm -create
c. pntadm -c
d. rpcinfo -d

Answer: a

30. ______ prints the dhcp_network file.

a. dhtadm -P
b. pntadm -P
c. rpcinfo -P
d. dhcpmgr -P

Answer: b