Test
Chapter 7
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Preguntas del test (24)
1What is the complete range of TCP and UDP well-known ports?
- A0 to 255
- B0 to 1023
- C256 – 1023
- D1024 – 49151
2Which two flags in the TCP header are used in a TCP three-way handshake to establish connectivity between two network devices? (Choose two.)
- AACK
- BFIN
- CPSH
- DRST
- ESYN
- FURG
3A PC is downloading a large file from a server. The TCP window is 1000 bytes. The server is sending the file using 100-byte segments. How many segments will the server send before it requires an acknowledgment from the PC?
- A1 segment
- B10 segments
- C100 segments
- D1000 segments
4During a TCP session, a destination device sends an acknowledgment number to the source device. What does the acknowledgment number represent?
- Athe total number of bytes that have been received
- Bone number more than the sequence number
- Cthe next byte that the destination expects to receive
- Dthe last sequence number that was sent by the source
5Which three application layer protocols use TCP? (Choose three.)
- ASMTP
- BFTP
- CSNMP
- DHTTP
- ETFTP
- FDHCP
6 Refer to the exhibit. How many broadcast domains are there?
- A1
- B2
- C3
- D4
7 How many usable host addresses are there in the subnet 192.168.1.32/27?
- A32
- B30
- C64
- D16
- E62
8How many host addresses are available on the network 172.16.128.0 with a subnet mask of 255.255.252.0?
- A510
- B512
- C1022
- D1024
- E2046
- F2048
9A network administrator is variably subnetting a network. The smallest subnet has a mask of 255.255.255.248. How many host addresses will this subnet provide??
- A4
- B6
- C8
- D10
- E12
10Refer to the exhibit. A company uses the address block of 128.107.0.0/16 for its network. What subnet mask would provide the maximum number of equal size subnets while providing enough host addresses for each subnet in the exhibit?
- A255.255.255.0
- B255.255.255.128
- C255.255.255.192
- D255.255.255.224
- E255.255.255.240
11Refer to the exhibit. The network administrator has assigned the LAN of LBMISS an address range of 192.168.10.0. This address range has been subnetted using a /29 prefix. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network (subnet zero is the first subnet). By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last usable host address. Which configuration should be entered into the properties of the workgroup server to allow connectivity to the Internet?
- AIP address: 192.168.10.65 subnet mask: 255.255.255.240, default gateway: 192.168.10.76
- BIP address: 192.168.10.38 subnet mask: 255.255.255.240, default gateway: 192.168.10.33
- CIP address: 192.168.10.38 subnet mask: 255.255.255.248, default gateway: 192.168.10.33
- DIP address: 192.168.10.41 subnet mask: 255.255.255.248, default gateway: 192.168.10.46
- EIP address: 192.168.10.254 subnet mask: 255.255.255.0, default gateway: 192.168.10.1
1229. How many bits must be borrowed from the host portion of an address to accommodate a router with five connected networks?
- Atwo
- Bthree
- Cfour
- Dfive
13A company has a network address of 192.168.1.64 with a subnet mask of 255.255.255.192. The company wants to create two subnetworks that would contain 10 hosts and 18 hosts respectively. Which two networks would achieve that? (Choose two.)
- A192.168.1.16/28
- B192.168.1.64/27
- C192.168.1.128/27
- D192.168.1.96/28
- E192.168.1.192/28
14In a network that uses IPv4, what prefix would best fit a subnet containing 100 hosts?
- A/23
- B/24
- C/25
- D/26
15Given the network address of 192.168.5.0 and a subnet mask of 255.255.255.224, how many total host addresses are unused in the assigned subnets?
- A56
- B60
- C64
- D68
- E72
16Refer to the exhibit. A computer that is configured with the IPv6 address as shown in the exhibit is unable to access the internet. What is the problem?
- AThe DNS address is wrong.
- BThere should not be an alternative DNS address.
- CThe gateway address is in the wrong subnet.
- DThe settings were not validated.
17 When subnetting a /64 IPv6 network prefix, which is the preferred new prefix length?
- A/66
- B/70
- C/72
- D/74
18 What is the subnet address for the address 2001:DB8:BC15:A:12AB::1/64?
- A2001:DB8:BC15::0
- B2001:DB8:BC15:A::0
- C2001:DB8:BC15:A:1::1
- D2001:DB8:BC15:A:12::0
19Which two notations are useable nibble boundaries when subnetting in IPv6? (Choose two.)
- A/62
- B/64
- C/66
- D/68
- E/70
20In dotted decimal notation, the IP address [blank_start]172.25.0.126[blank_end] is the last host address for the network 172.25.0.64/26.
- A172.25.0.126
21 Fill in the blank.
In dotted decimal notation, the subnet mask [blank_start]255.255.254.0[blank_end] will accommodate 500 hosts per subnet.
Consider the following range of addresses:
2001:0DB8:BC15:00A0:0000::
2001:0DB8:BC15:00A1:0000::
2001:0DB8:BC15:00A2:0000::
…
2001:0DB8:BC15:00AF:0000::
The prefix-length for the range of addresses is [blank_start]/60[blank_end]- A255.255.254.0
- B/60
22A nibble consists of [blank_start]4[blank_end] bits.
- A4
23Given the network address of 192.168.5.0 and a subnet mask of 255.255.255.224, how many addresses are wasted in total by subnetting each network with a subnet mask of 255.255.255.224?
- A56
- B60
- C64
- D68
- E72
24Refer to the exhibit. Consider a datagram that originates on the PC and that is destined for the web server. Match the IP addresses and port numbers that are in that datagram to the description. (Not all options are used.)
destination IP address -> [blank_start]192.168.2.2[blank_end]
destination port number -> [blank_start]80[blank_end]
source IP address -> [blank_start]192.168.1.2[blank_end]
source port number -> [blank_start]2578[blank_end]
- A192.168.2.2
- B80
- C192.168.1.2
- D2578
Información
- Descripción
- Computer Science Test sobre Chapter 7 , creado por Daniel Wygoda el 24/03/2017.
- Autor
- Daniel Wygoda
- Idioma
- English
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