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19 Cards in this Set
- Front
- Back
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Which characteristic of the network layer in the OSI model allows carrying packets for multiple types of communications among many hosts? 1 the de-encapsulation of headers from lower layers 2the selection of paths for and direct packets toward the destination 3 the ability to operate without regard to the data that is carried in each packet 4 the ability to manage the data transport between processes running on hosts |
3 the ability to operate without regard to the data that is carried in each packet |
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What are two characteristics of IP? (Choose two.) 1 does not require a dedicated end-to-end connection 2 operates independently of the network media 3 retransmits packets if errors occur 4 re-assembles out of order packets into the correct order at the receiver end 5 guarantees delivery of packets |
1 does not require a dedicated end-to-end connection 2 operates independently of the network media |
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When a connectionless protocol is in use at a lower layer of the OSI model, how is missing data detected and retransmitted if necessary? 1 Connectionless acknowledgements are used to request retransmission. 2 Upper-layer connection-oriented protocols keep track of the data received and can request retransmission from the upper-level protocols on the sending host. 3 Network layer IP protocols manage the communication sessions if connection-oriented transport services are not available. 4 The best-effort delivery process guarantees that all packets that are sent are received. |
2 Upper-layer connection-oriented protocols keep track of the data received and can request retransmission from the upper-level protocols on the sending host. |
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Which field in the IPv4 header is used to prevent a packet from traversing a network endlessly? 1 Time-to-Live 2 Sequence Number 3 Acknowledgment Number 4 Differentiated Services |
1 Time-to-Live |
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What IPv4 header field identifies the upper layer protocol carried in the packet? 1 Protocol 2 Identification 3 Version 4 Differentiated Services |
1 Protocol |
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What is one advantage that the IPv6 simplified header offers over IPv4? 1 smaller-sized header 2 little requirement for processing checksums 3 smaller-sized source and destination IP addresses 4 efficient packet handling |
4 efficient packet handling |
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obrazok 1 |
Network dest 192.168.10.0 netmask 255.255.255.0 |
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obrazok 2 1 FastEthernet0/0 2 FastEthernet0/1 3 Serial0/0/0 4 Serial0/0/1 |
4 Serial0/0/1 |
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What type of route is indicated by the code C in an IPv4 routing table on a Cisco router? 1 static route 2 default route 3 directly connected route 4 dynamic route that is learned through EIGRP |
3 directly connected route |
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What routing table entry has a next hop address associated with a destination network? 1 directly-connected routes 2 local routes 3 remote routes 4 C and L source routes |
3 remote routes |
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Which statement describes a hardware feature of a Cisco 1941 router that has the default hardware configuration? 1 It does not have an AUX port. 2 It has three FastEthernet interfaces for LAN access. 3 It has two types of ports that can be used to access the console. 4 It does not require a CPU because it relies on Compact Flash to run the IOS. |
3 It has two types of ports that can be used to access the console. |
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Following default settings, what is the next step in the router boot sequence after the IOS loads from flash? 1 Perform the POST routine. 2 Locate and load the startup-config file from NVRAM. 3 Load the bootstrap program from ROM. 4 Load the running-config file from RAM. |
2 Locate and load the startup-config file from NVRAM. |
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What are two types of router interfaces? (Choose two.) 1 SVI 2 LAN 3 DHCP 4 Telnet 5 WAN |
2 LAN 5 WAN |
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Which two pieces of information are in the RAM of a Cisco router during normal operation? (Choose two.) 1 Cisco IOS 2 backup IOS file 3 IP routing table 4 basic diagnostic software 5 startup configuration file |
1 Cisco IOS 3 IP routing table |
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A router boots and enters setup mode. What is the reason for this? 1 The IOS image is corrupt. 2 Cisco IOS is missing from flash memory. 3 The configuration file is missing from NVRAM. 4 The POST process has detected hardware failure. |
3 The configuration file is missing from NVRAM. |
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What is the purpose of the startup configuration file on a Cisco router? 1 to facilitate the basic operation of the hardware components of a device 2 to contain the commands that are used to initially configure a router on startup 3 to contain the configuration commands that the router IOS is currently using 4 to provide a limited backup version of the IOS, in case the router cannot load the full featured IOS |
2 to contain the commands that are used to initially configure a router on startup |
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Which three commands are used to set up secure access to a router through a connection to the console interface? (Choose three.) 1 interface fastethernet 0/0l 2 ine vty 0 4 3 line console 0 4 enable secret cisco 5 login 6 password cisco |
3 line console 0 5 login 6 password cisco |
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Which characteristic describes an IPv6 enhancement over IPv4? 1 IPv6 addresses are based on 128-bit flat addressing as opposed to IPv4 which is based on 32-bit hierarchical addressing. 2 The IPv6 header is simpler than the IPv4 header is, which improves packet handling. 3 Both IPv4 and IPv6 support authentication, but only IPv6 supports privacy capabilities. 4 The IPv6 address space is four times bigger than the IPv4 address space. |
2 The IPv6 header is simpler than the IPv4 header is, which improves packet handling. |
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Open the PT Activity. The enable password on all devices is cisco.Perform the tasks in the activity instructions and then answer the question. For what reason is the failure occurring? 1 PC1 has an incorrect default gateway configured. 2 SW1 does not have a default gateway configured. 3 The IP address of SW1 is configured in a wrong subnet. 4 PC2 has an incorrect default gateway configured. |
2 SW1 does not have a default gateway configured. |
