NRS-1 Questions 2

1

The original network that ultimately became the internet was called

1

The primary organisation behind the development of the original internet was

1

Which of the following was not a primary design concern during the development of the original internet?

1

Which of the following was not a reason TCP was a superior transport protocol to NCP?

1

Which of the following OSI layers is not paired with the correct implementation?

1

Part of the growth of ARPANET was driven by the ability of anyone to create a disseminate information about potential protocols and the applications in a particular kind of document. These documents are known as______

1

ISPs connect to each other at well-defind network locations to exchange information. These connection points are known as ______.

1

A company that has locations throughout the country can obtain service at each location from a tier 1, tier 2, or tier 3 provider. What is one reason a company might choose to connect all locations to a tier 1 provider despite the higher costs involved?

1

Which of the following services would likely be offered by a content provider but not a service provider?

1

which of the following accurately describes the TCP protocol?

1

Originally the IP protocol functions were performed by _______

1

When a HTTP packets needs to be forwarded over the internet, which of the following accurately describes the order of the headers as they would be placed in front of each other in the packet (assume that the originating device is on an Ethernet network?)

1

A router processing the packet described in question 12 would need to examine and/or manipulate which headers?

1

What would a router processing the packed described in question 12 do with the layer 2 header of the incoming header?

1

Most of the OSI-created protocols are no longer in use, although a few still provide some critically important functions. Which of the following describes an OSI protocol that is still in use?

1

Which of the following is not a product in the Alcatel-Lucent 7750 SR/7450 ESS family?

1

Which of the following statements is false regarding the Alcatel-lucent 7450 ESS series?

1

Which of the following descriptions is correct?

1

Which of the following commands is not correctly described?

1

Which of the following is not a log stream type?

1

Which of the following descriptions of hardware for the Alcatel-Lucent 7750 SR/7450 ESS is correct?

1

What file contains the system bootstrap image?

1

The SF/CPM card has its own Ethernet interface for out-of-band management. This interface has its own IP address and default route. Where is this information stored?

1

Which of the following correctly lists the order in which files are read by the Alcatel-Lucent 7750 SR/7450 ESS upon bootup?

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During the boot process, an Alcatel-Lucent 7750 SR/7450 ESS checks to see if persistence is enabled. What is the purpose of persistence?

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What command would you use to enable an interface the first time you initialized an Alcatel-Lucent 7750 SR/7450 ESS?

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Which of the following is the correct provisioning order you should follow when configuring an Alcatel-Lucent 7750 SR/7450 ESS for the first time?

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Which of the following is false regarding the logging mechanisms in the Alcatel- Lucent 7750 SR/7450 ESS?

1

What command would you use to display the configuration of your Alcatel-Lucent 7750 SR/7450 ESS?

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Which of the following values is not stored in the bof.cfg?

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Which of the following is not a data link layer (OSI Layer 2) protocol?

1

Which of the following is not a function of PPP?

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Which of the following ATM AAL types is associated with an incorrect description?

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Which of the following technologies ensures that a unicast packet is visible only to the device with the specific destination address?

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The advantage of using multicast packets instead of broadcast packets is:

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A PPP frame has several fields that are not used, like addressing. Why do these fields exist in the frame?

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ATM uses 53-byte cells, which is quite a bit smaller than the maximum Ethernet frame. What is the purpose of having such a small cell size?

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What is the purpose of the ATM Adaptation Layer?

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What are the two main types of Ethernet frames?

1

Which of the following values for the Ethertype/length fields indicates an 802.3 frame (numbers are in decimal)?

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The original Thicknet standard had a maximum cable length as well as a minimum distance for stations to tap into the cable. Based on the description of CSMA/CD, what is the most likely reason for these distance requirements?

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An Ethernet MAC address consists of ______.

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When an Ethernet station wants to transmit information, the process it follows
is ______.

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What happens when two or more Ethernet stations attempt to transmit at the
same time?

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Which of the following Ethernet standards is not matched correctly?

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When a frame with an unknown destination MAC address enters a switch, the switch will forward it out which ports?

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The primary difference in the way Ethernet hubs and Ethernet switches handle traffic is ______.

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Which of the following is not true about Link Aggregation Groups?

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Which of the following is not true of the STP protocol?

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The advantage of using VLANs is ______.

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Which of the following statements is false?

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The method that LAGs use to provide load balancing is best described as:

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Given the following code:
Config> lag 1
Config>lag# description “LAG from PE1 to PE2”
Config>lag# port 1/1/1 1/1/2 1/1/3 1/1/4 1/1/5 1/1/6
Config>lag# port-threshold 2 action down
Config>lag# dynamic-cost
Config>lag# no shutdown

Which answer correctly describes what happens when Ports 1/1/5 and 1/1/6 fail?

1

What is the primary reason that Ethernet switched networks require STP?

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The mechanism that STP uses to prevent loops in an Ethernet switched network is ______.

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What determines how the root bridge is elected?

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What distinguishes an alternate port from a back-up port in STP?

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Which of the following is false regarding VLANs?

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Which STP port state is characterized by the port accepting and recording MAC address information, but not forwarding any frames out the port?

1

The technology that allows multiple customers with the same VLANs to use the same provider backbone for their Ethernet traffic is known as ______.

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Which of the following is not a reason networks built on Ethernet alone cannot scale to a global?

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Which of the following is true about Layer 3 addressing?

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Which of the following is not true about an IP packet?

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Which of the following is a valid host IP address?

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An IP address has a first octet represented in binary as 11000001; the equivalent in decimal is ______.

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The address 224.100.1.1 under traditional classful addressing would be _____

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Which of the following is not a private address?

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Which of the following is not a reason that subnetting is superior to class-based addressing?

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Given a network address of 192.168.100.0/24, what is the maximum number of subnets you can create if each subnet must support at least seven hosts?

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If your network address is 10.1.0.0/16 and you have subnetworks that all support at least 300 hosts, how many subnets do you have?

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Which of the following is the correct representation of mask 255.192.0.0?

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A network with a /30 mask allows you to have how many usable host addresses?

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Given the address 10.1.1.0/24, the most correct description of 10.1.1.0 is ______.

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The concept of allowing a single route entry to represent many network addresses is known as ______.

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How many subnets can be created from network 10.0.0.0/8 if each subnet must support at least 31 hosts?

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Given network 175.100.0.0/16, if you create four subnets, how many addresses are available on each subnet?

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What is the correct “all hosts” broadcast address for subnet 10.15.0.0/17?

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Which of the following is not allowed?

1

Given network 135.100.0.0/16, you need nine subnets, and of these nine, one subnet needs to be split into 13 additional subnets. Choose the most likely masks you would create for this.

1

Given network 176.200.0.0/16 and a subnet that supports 4,387 hosts, what is the most likely mask for the subnet?

1

Which of the following is a function not performed by a router when forwarding an IP packet?

1

Which of the following highlights the differences between a traditional home user network and the modern home user network?

1

In a typical home network, when a PC needs to send an IP packet to a destination on the Internet, it first sends the packet to ______.

1

Which of the following statements regarding NAT is false?

1

The process by which a home user’s router requests and receives a public IP address from its service provider is known as ______.

1

Which of the following is false about the DHCP process?

1

The ping application relies on two common ICMP message types. Which answer is not one of these types?

1

Which of the following is true regarding ICMP destination unreachable messages?

1

Which of the following is not usually involved in the ARP process when a host needs to send an IP packet to another host not on its own IP subnet?

1

Which of the following is false regarding IP filters?

1

Which of the following is not a match criteria that can be used with IP filters?

1

Which of the following is not a valid IP filter command?

1

Which of the following IP filter entries would match packets from network 11.1.1.0/24 to host 5.1.1.1?

1

You are creating a filter to permit packets to destination IP address 192.168.1.1/32. You want all other packets to be dropped. Which of the following commands is not required to support this policy?

1

match dst-ip 192.168.1.1/32

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Which of the following is not a transport layer protocol?

1

Which of the following statements about transport layer protocols is false?

1

Which of the following is not a characteristic of the TCP protocol?

1

Which of the following is not a characteristic of the UDP protocol?

1

Which of the following TCP flags is not matched with the correct definition?

1

A TCP sequence or acknowledgment number consists of ______ bits.

1

After a client initiates a connection request to a server with the SYN bit set, the server usually responds with a packet that has the ______ bit set.

1

Which of the following TCP bits is set to indicate that an application wishes to close an open connection?

1

When operating in slow start mode, which of the following describes the mechanisms to throttle the amount of data sent?

1

Which of the following are possible mechanisms by which a TCP sending process could recognize that packets it sent to a receiver had been dropped by the network?

1

Given the values MSS=1000 bytes, cwnd value=6, window size=5000, and sender’s SN=5000, what will be the ACK number from the receiving station after the sender sends its next set of segments to the receiving station?

1

Which of the following types of applications would be least likely to use the UDP protocol?

1

TCP provides many advanced features missing from UDP. Which of the following is an advantage that UDP has over TCP?

1

Which of the following is least likely to be used as an ephemeral port?

1

DNS is a unique protocol in terms of its transport selection because simple name lookups use UDP, while “zone transfers” that transfer a large amount of name resolution information from one DNS server to another use TCP. What is the least likely reason for using this approach?

1

An IP router normally uses which of the following pieces of information to forward an IP packet?

1

The two main categories of routing protocols are IGP and ______.

1

Which of the following is not a characteristic of an IGP?

1

A router can run multiple routing protocols that each have their own table of routing information. A router selects the best route for each destination from all routing sources and puts them in the ______.

1

Which of the following pairings is not correct?

1

In which situation would you be most likely to use a static default route?

1

It is said that distance vector protocols have a longer convergence time than link state protocols. What is the most likely reason for this?

1

There are many advantages of link state protocols over distance vector protocols. Which of the following is a potential advantage of distance vector?

1

When a link state router receives an LSP update, it uses what algorithm to calculate its routing table?

1

Which of the following is most likely to be used for forwarding IP packets from a stub network?

1

The forwarding of packets on a router is a function of the data plane. The use of a routing protocol to build routing tables is a function of ______.

1

Link state protocols flood LSP information throughout the network to each router. These LSPs are stored in ______.

1

If there are multiple identical network prefixes advertised by different routing protocols, the Routing Table Manager chooses the route to place in the routing table based on ______.

1

Using a link state protocol, which of the following best describes the view each router has of all the links in the network after all LSPs have been flooded?

1

Which of the following is the most accurate explanation of the information a distance vector routing protocol sends to neighboring routers?

1

OSPF discovers neighbors ______.

1

Which of the following is not a feature of the OSPF protocol?

1

Which logical interface is recommended for defining a router ID?

1

What is the primary purpose of the OSPF router ID?

1

LSA updates are sent in response to network changes and ______.

1

What does it mean to say that two OSPF routers are adjacent?

1

What is required for OSPF routers on a point-to-point network to form an adjacency?

1

Which of the following hello packet values is not involved in the adjacency process on point-to-point links?

1

In addition to having correct OSPF settings in the Hello packets, another value that can prevent routers from forming an adjacency in the event of a mismatch is ______.

1

The command to display the Link State Updates that a router has received is ______.

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There are many different types of LSAs in OSPF. The most common LSA type in point-to-point networks is ______.

1

If an OSPF router receives an LSA with a sequence number that is equal to the sequence number it already has for that LSA, it will ______.

1

Which of the following is false regarding the Shortest Path First algorithm that OSPF uses?

1

Which of the following correctly identifies the order of steps for two OSPF routers to become fully adjacent?

1

Which of the following default metrics is not correct for the given interface speed?

1

The primary purpose of an EGP is to ______.

1

Which of the following is false regarding ASes?

1

Which logical interface is preferred for creating internal BGP sessions?

1

Which of the following is true regarding BGP neighbors?

1

Two BGP routers configured as neighbors communicate using ______.

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The primary purpose of iBGP is ______.

1

By default, BGP will choose the best path to a given network destination based on ______.

1

Once BGP peers establish a connection, they send routing updates to each other
using ______.

1

By looking only at the BGP configuration statements on two routers, you can tell if they are iBGP peers or eBGP peers because ______.

1

The command to display the status of your BGP process is ______.

1

In the event that a previously advertised network becomes unreachable, BGP will ______.

1

In which of the following situations would you be least likely to use BGP?

1

The three well-known mandatory attributes in BGP are ______.

1

A BGP router usually does not need to receive a full Internet routing table if ______.

1

All of the following are reasons that using BGP between ASes is preferable to using IGP route re-distribution except ______.

1

Which of the following accurately describes a P device?

1

Which of the following is false regarding an SDP?

1

Which of the following is not an accurate description of a VPN?

1

Which of the following is false regarding LDP?

1

Which of the following term–definition pairs is incorrect?

1

The most commonly used label distribution protocol is ______.

1

Which of the following is not a type of VPN?

1

A VPN that provides a simple point-to-point service between two destinations is a ______.

1

The VPN service that must maintain a table of MAC addresses is ______.

1

The VPN service that requires encryption is ______.

1

The VPN service that appears to the customer as a private routed network is ______.

1

As a packet traverses an MPLS network, it passes through a router that removes one label and replaces it with another. The router it passed through was a ______ router.

1

A packet arrives at a router with a label, and the router cannot perform any operations on it. The router is most likely a ______.

1

ACCA Digital Technologies Test sobre NRS-1 Questions 2 , creado por ryan abbott el 24/05/2018.

NRS-1 Questions 2

The original network that ultimately became the internet was called

The primary organisation behind the development of the original internet was

Which of the following was not a primary design concern during the development of the original internet?

Which of the following was not a reason TCP was a superior transport protocol to NCP?

Which of the following OSI layers is not paired with the correct implementation?

Part of the growth of ARPANET was driven by the ability of anyone to create a disseminate information about potential protocols and the applications in a particular kind of document. These documents are known as______

ISPs connect to each other at well-defind network locations to exchange information. These connection points are known as ______.

A company that has locations throughout the country can obtain service at each location from a tier 1, tier 2, or tier 3 provider. What is one reason a company might choose to connect all locations to a tier 1 provider despite the higher costs involved?

Which of the following services would likely be offered by a content provider but not a service provider?

which of the following accurately describes the TCP protocol?

Originally the IP protocol functions were performed by _______

When a HTTP packets needs to be forwarded over the internet, which of the following accurately describes the order of the headers as they would be placed in front of each other in the packet (assume that the originating device is on an Ethernet network?)

A router processing the packet described in question 12 would need to examine and/or manipulate which headers?

What would a router processing the packed described in question 12 do with the layer 2 header of the incoming header?

Most of the OSI-created protocols are no longer in use, although a few still provide some critically important functions. Which of the following describes an OSI protocol that is still in use?

Which of the following is not a product in the Alcatel-Lucent 7750 SR/7450 ESS family?

Which of the following statements is false regarding the Alcatel-lucent 7450 ESS series?

Which of the following descriptions is correct?

Which of the following commands is not correctly described?

Which of the following is not a log stream type?