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Tập hợp những câu hỏi và trả lời cơ bản về Network Management như QUESTION 1 You have a small office of computers. Each machine is responsible for its own security. What type of network are you running? A. Peer to peer B. Serverbased C. WAN D. None of the above QUESTION 2 Which type of network is most likely confined to a building or a campus? A. Local area network (LAN) B. Metropolitan area network (MAN) C. Wide area network (WAN) D. Global area network (GAN)
Basic Network Management Exam A QUESTION You have a small office of computers Each machine is responsible for its own security What type of network are you running? A B C D Peer- to- peer Server-based WAN None of the above QUESTION Which type of network is most likely confined to a building or a campus? A B C D Local area network (LAN) Metropolitan area network (MAN) Wide area network (WAN) Global area network (GAN) QUESTION Which of the following can concurrently provide and request services? A B C D Server Client Peer None of the above QUESTION UTP Category uses how many twisted pair(s) of cables? A B C D QUESTION The most common connector used with UTP cable is: A B C D RJ -11 RJ -45 RJ -48 RJ -54 QUESTION Transmission rates of what speed are typical for UTP Category cables? A B C D 16 Mbps 25 Mbps 100 Mbps 1000 Mbps QUESTION Transmission rates of what speed are typical for UTP Category cables? A B C D 10 Mbps 25 Mbps 100 Mbps 1000 Mbps QUESTION In order to connect two thinnet cable segments, we can use: A B C D BNC T connector BNC Barrel connector BNC Terminator None of the above QUESTION Which of the following cable types supports the greatest cable lengths? A B C D Unshielded twisted-pair Shielded twisted-pair Thicknet coaxial cable Thinnet coaxial cable QUESTION 10 What are two advantages of UTP cable? ( choose 2) A B C Low cost Easy installation High resistance to Electromagnetic Interference due to twists in cable D Cabling of up to 500 meters QUESTION 11 What are two disadvantages of the fiber-optic cable? ( choose2) A B C D Sensitive to Electromagnetic Interference Expensive hardware Difficult to install Limited in bandwidth QUESTION 12 In order to close and stop signal in the thinnet cable system, we can use: A B C D BNC T connector BNC Barrel connector BNC Terminator None of the above QUESTION 13 If you see a group of networked computers connected to a central hub, you know that the network has what type of physical topology? A B C D Ring Star Bus None of the above QUESTION 14 Generally, infrared can transmit with speed: A B C D Mbps Mbps Mbps 10 Mbps QUESTION 15 Which type of cables cannot be tapped into and data stolen? A B C D Coaxial Fiber- optic UTP STP QUESTION 16 What is the maximum size of a 10 BASE-5 network? A B C D 100 meters 300 meters 1500 meters 2500 meters QUESTION 17 Which topology uses UTP cable? A 10BASE2 B 10BASE5 C 10BASE-T D None of the above QUESTION 18 Which topology uses Fiber-optic cable? A B C D 10BASE2 10BASE5 10BASE-T 10BASE-FL QUESTION 19 SNMP is stand for: A B C D Simple Network Monitoring Protocol Security Network Management Protocol Simple Network Management Protocol Security Network Modification Protocol QUESTION 20 You need to connect two systems that not use the same communicating protocol To so, you will need what type of device? (D) A B C D Bridge Router Hub Gateway QUESTION 21 The WAN can be categorized by examining the differing characteristics of the network environment: (choose 3) A B C Is ownership of the network public or private? Is the cost cheap or expensive? Is the network designed primarily for voice or data traffic? D Are connections dedicated or switched? QUESTION 22 Public WAN is concerned with: ( choose 2) A Control and management of the network from their own facilities B Determines which services are subject to tariff and at what rate C Dictates the telecommunications services D Exclusive access to dedicated links QUESTION 23 The largest public WAN designed for data is : A B C D Public Switched Telephone Network (PSTN) Internet Frame Relay X.25 QUESTION 24 There are three basic types of WAN switching services: ( choose ) A B C D Circuit-switched Packet-switched Cell-switched Permanent-switched QUESTION 25 How many bits are in an IP address? A B C D 16 32 QUESTION 26 The network number plays what part in an IP address? A B C It specifies the network to which the host belongs It specifies the identity of the computer on the network It specifies which node on the subnetwork is being addressed D It specifies which networks the device can communicate with QUESTION 27 The host number plays what part in an IP address? A B It designates the identity of the computer on the network It designates which node on the subnetwork is being addressed C It designates the network to which the host belongs D It designates which hosts the device can communicate with QUESTION 28 What decimal number equals the binary number 11111111? A B C D 128 254 255 QUESTION 29 What binary number equals the hexadecimal number EC? A B C D 11101110 11101101 11101111 11101100 QUESTION 30 What hexadecimal number equals the decimal number 127? A B C D 1F 7F 3F FE QUESTION 31 What is the broadcast address of the subnet address 172.16.8.159, subnet mask 255.255.255.192 A B C D 172.16.255.255 172.16.8.127 172.16.8.255 172.16.8.191 QUESTION 32 What is the broadcast address of the subnet address 172.16.99.99, subnet mask 255.255.192.0 A B C D 172.16.127.255 172.16.99.255 172.16.255.255 172.16.64.127 QUESTION 33 If you are using a class C network ID with two subnets and need 30 hosts per network, which of the following masks should you use? A B C D 255.255.255.0 255.255.255.252 255.255.255.224 255.255.255.192 QUESTION 34 What are the valid host range with an IP address of 222.37.2.50/24 A B C D E 222.37.2.48-222.37.2.66 222.37.2.49-222.37.2.62 222.37.0.0-222.37.255.254 222.37.2.0-222.37.2.255 222.37.2.1-222.37.2.254 QUESTION 35 Given an IP host address of 192.168.5.121 and a subnet mask of 255.255.255.248, what is the network number of the host? A B C D 192.168.5.12 192.169.5.121 192.169.5.120 192.168.5.120 QUESTION 36 Given an IP host address of 172.16.2.120 and a subnet mask of 255.255.255.0, what is the network number of the host? A B C D 172.16.2.0 172.16.255.255 172.16.0.120 172.16.2.120 QUESTION 37 What range of address can br used in the first octet of a Class B network address? A 1-126 B 1-127 C 128-190 D 128-191 E 129-192 F 192-220 QUESTION 38 What is the broadcast address of subnet address 172.16.99.99 255.255.192.0? A B C D 172.16.99.255 172.16.127.255 172.16.255.255 172.16.64.127 QUESTION 39 What valid host range is the IP address 172.16.10.22, subnet mask 255.255.255.240 a part of : A B C D 172.16.10.20 through 172.16.10.22 172.16.10.17 through 172.16.10.30 172.16.10.1 through 172.16.10.255 172.16.10.16 through 172.16.10.23 QUESTION 40 Every IP consists of : A B C D E Net ID Host ID Net ID and Host IP Net IP and Host IP Net ID and Host ID QUESTION 41 127.0.0.1 is address: A Internet address B Loop-back address C Class A D Class B QUESTION 42 Class B has default subnet masks : A B C D 255.255.0.0 255.255.255.0 255.255.255.255 255.0.0.0 QUESTION 43 Class C has default subnet masks : A B C D 255.255.127.0 255.255.255.0 255.255.255.255 255.192.0.0 QUESTION 44 An IP broadcast address : A B C D Host IP of all 1s Host ID of all 0s Net ID of all 1s Host ID of all 1s QUESTION 45 Which cable type is ideal for connecting between two buildings? A B C D UTP STP Coaxial Fiber-optic QUESTION 46 In order to close and stop signal in the thinnet cable system, we can use: A B C D BNC T connector BNC Barrel connector BNC Terminator None of the above QUESTION 47 If you see a group of networked computers connected to a linear, you know that the network has what type of physical topology? A B C D Ring Star Bus None of the above QUESTION 48 If you see a group of networked computers connected to another in a daisy chain, you know that the network has what type of physical topology? A B C D Ring Star Bus Mesh QUESTION 49 What is the maximum of computer on each segment in a 10 BASE-5 network? A B C D 10 15 100 125 QUESTION 50 Which topology uses Thicknet cable? A B C D 10BASE2 10BASE5 10BASE-T None of the above QUESTION 51 Which topology uses UTP cable? A B C D 10BASE2 10BASE5 10BASE-T None of the above QUESTION 52 What binary number equals the decimal number 127? A B C D 00011111 00111111 01111111 11111111 QUESTION 53 If a class B network is subnneted with a mask of 255.255.254.0, how many usable subnets are created? A B C D 62 64 126 128 QUESTION 54 Class B has default subnet masks : A B C D 255.255.0.0 255.255.255.0 255.255.255.255 255.192.0.0 Exam B QUESTION Which of the following types of topology has at least two network connections on every device on the network? A B C D Bus Mesh Ring Star QUESTION Which of the following network topologies is the most fault tolerant? A B C D Mesh Hierarchical star Ring Star QUESTION Which of the following represents the best solution for connecting three computers in a LAN? A B C D Peer-to-peer Server-based Direct connect Router-based QUESTION Which of the following network types is easiest to add new nodes to? A B C D Ring Star Bus Mesh QUESTION Which of the following is not an advantage of the star topology compared to the mesh topology? A B C D Easy to manage Easy to add nodes Low overhead High fault-tolerant QUESTION Which of the following is not a common logical topology? A B C D Bus Ring Star Mesh QUESTION You are connecting a network storage system to a LAN using 1000BASE-SX connections What type of cabling are you using? A B C D Single mode fiber-optic cabling CAT6 cabling Multimode fiber-optic cabling SCSI cabling QUESTION You are making some category twisted-pair cables and have run out of connectors What type of connector should you order from your supplier? A B C D RJ-45 RJ-11 BNC ST QUESTION Which of the following uses an RJ-45 connector? A B C D Coaxial cable UTP cable Fiber-optic cable Thinnet cable QUESTION 10 Select the best networking media for a new installation in which 10 clients are connected to a hub in a 100BASE-T network A B C D Category UTP RG-58 Fiber optic Category UTP QUESTION 11 A large LAN has been segmented into two separate LANs Which network element is the best choice for connecting the two LANs? A A gateway B A hub C A router D A NIC QUESTION 12 Which of the following best describes active hubs and repeaters? A Repeaters link network segments while active hubs not B Both active hubs and repeaters restore signals C Repeaters restore signal integrity while active hubs not D Neither active hubs nor repeaters link network segments QUESTION 13 To directly connect the NIC cards in two personal computers, what's needed? A B C D Hub Crossover cable Router Bridge QUESTION 14 What is the function of a repeater? A B C D To boost the signal strength and restore its shape To reconcile MAC and IP addresses To connect different networks To connect Ethernet and token ring LANs QUESTION 15 For a device to be compatible with the 802.11a standard, what is the minimum connection speed at which it must be able to operate? A 9Mbps B 5.5Mbps C 2Mbps D 11Mbps QUESTION 16 Which of the following best describes the function of a MAC address? A B C D It's used to physically locate a device on a network It's used to logically locate a device on a network It's used to route packets between networks It's used to assign workstations to specific hub ports QUESTION 17 Which utility can you use to find out the MAC address of your workstation? A B C D Ipconfig Ping Arp Tracert QUESTION 18 An Ethernet frame is to be transported across the Internet using TCP/IP Which of the following is true? A B C D MAC addresses are checked at each router IP addresses are updated at each router TCP is discarded at each router IP addresses are discarded at each router QUESTION 19 Which layer of the OSI model is responsible for encryption and decryption? A B C D Network Presentation Session Physical QUESTION 20 Which of the following OSI layers establishes, manages, and breaks communication sessions between applications? A B C D Session Application Presentation Network QUESTION 21 Which layer of the OSI model is responsible for establishing a reliable connection? A B C D Network Session Transport Data Link QUESTION 22 At what layer of the OSI model are logical addresses (IP addresses) assigned? A B C D Data Link Application Physical Network QUESTION 23 Email and FTP work at which layer of the OSI model? A B C D Application Session Presentation User QUESTION 24 At which layer of the OSI model is the protocol HTTP associated? A B C D Session Application Network Presentation QUESTION 25 Which layer of the OSI model is responsible for electrical and mechanical specifications? A B C D Physical Application Data Link Session QUESTION 26 Which of the following devices operates at the Network layer of the OSI model? A B C D Router Repeater Hub Switch QUESTION 27 Which of the following devices operates at the Data Link as well as the Network layer? A B C D Hub Brouter Bridge Router QUESTION 28 Which of the following devices is associated with the Physical layer? A B C D Switch NIC card Fiber optic cable Router QUESTION 29 Which two of the following protocols are responsible for network addressing? A B C D IP TCP SPX IPX QUESTION 30 To assign a static IP address to a workstation, which of the following must you do? A B C D Choose to obtain an IP address automatically Specify the IP address and subnet mask Specify only an IP address Choose to obtain the subnet mask automatically QUESTION 31 Given the IP address of 212.16.175.24 and a subnet mask of 255.255.0.0, what is the network address of the segment to which this node is connected? A B C D 212.16.175 212.16 212.16.24 212.16.175.24 QUESTION 32 Which of the following is not one of the private address ranges? A 10.x.x.x B 224.181.x.x C 172.16.x.x D 192.168.x.x QUESTION 33 Which protocol is used to send email? A B C D NTP IMAP4 POP3 SMTP QUESTION 34 Which of the following is responsible for receiving email? A B C D POP3 SNMP ARP Telnet QUESTION 35 The 802.11b standard describes what kind of network? A B C D Token passing Contention Wireless Token bus QUESTION 36 What mask would you assign to the network ID of 172.16.0.0 if you needed more than 300 hosts with each subnet but fewer than 500? A 255.255.254.0 B 255.255.255.0 C 255.255.255.255 D 255.255.0.0 QUESTION 37 If you a 12 bit subnet masks, which of the following is a valid host range for the IP address 172.16.10.33? A B C D 1-254 1-63 33-47 33-46 QUESTION 38 Class A has default subnet masks: A B C D 255.255.0.0 255.255.0.0 127.127.0.0 255.0.0.0 QUESTION 39 Class B has default subnet masks: A B C D 255.255.0.0 255.255.255.0 255.255.255.255 255.0.0.0 QUESTION 40 Class C has default subnet masks: A B C D 255.255.127.0 255.255.255.0 255.255.255.255 255.192.0.0 QUESTION 41 An IP broadcast address: A B C D Host IP of all 1s Host ID of all 0s Net ID of all 1s Host ID of all 1s QUESTION 42 If a class B network is subnneted with a mask of 255.255.248.0, how many usable subnets are created? A B C D 16 30 QUESTION 43 If a class B network is subnneted with a mask of 255.255.252.0, how many usable subnets are created? A B C D 62 64 124 128 QUESTION 44 If a class B network is subnneted with a mask of 255.255.254.0, how many usable subnets are created? A B C D 62 64 126 128 QUESTION 45 If a class B network is subnneted with a mask of 255.255.255.0, how many usable subnets are created? A B C D 250 254 255 256 QUESTION 46 Consider the following description of a network and choose the best connection component for it from those listed An Ethernet LAN consists of 10 clients, a standalone server, and two printers The media used is category UTP A B C D Gateway MAU Hub Transceiver QUESTION 47 Which of the following devices is not associated with the Data Link layer? A B C D Router NIC card Switch Bridge QUESTION 48 Why are NIC cards classified at the Data Link layer? A B C D They contain IP addresses They contain TCP addressing They contain MAC addresses They connect directly to the network media QUESTION 49 Which of the following protocols is associated with the Internet? A B C D TCP/IP NetBEUI Token ring IEEE 802.3 QUESTION 50 What are the minimum configuration requirements for a TCP/IP connection to the Internet? A B C D IP address and Subnet Mask IP address, Gateway and DNS setting IP address only IP address, Subnet mask and Gateway setting ... 19 SNMP is stand for: A B C D Simple Network Monitoring Protocol Security Network Management Protocol Simple Network Management Protocol Security Network Modification Protocol QUESTION 20... differing characteristics of the network environment: (choose 3) A B C Is ownership of the network public or private? Is the cost cheap or expensive? Is the network designed primarily for voice... QUESTION 26 The network number plays what part in an IP address? A B C It specifies the network to which the host belongs It specifies the identity of the computer on the network It specifies