Eustace

The [ ] model breaks network communications down into seven functional layers. Chapter 3.2.1 - OSI Which type of network model describes the functions that must be completed at a particular layer, but does not specify exactly how each protocol should work? Chapter 3.1.3 - reference model - The primary purpose is to aid in a clearer understanding of the functions and processes necessary for network communications.This type of model does not specify exactly how a function should be accomplis...

Which statement about MPLS is true? A. It operates in Layer 1. B. It operates between Layer 2 and Layer 3. C. It operates in Layer 3. D. It operates in Layer 2. - Answer: B Explanation MPLS operates at a layer that lies between traditional definitions of Layer 2 (data link layer) and Layer 3 (network layer), and thus is often referred to as a "layer 2.5" protocol. Which two statements about MPLS are true? (Choose two) A. It provides automatic authentication B. It can carry multiple p...

The size of an MPLS label is? - 4 bytes 2 benefits of a provider network using MPLS - reduced routing table size and reduction in BGP connection The largest MPLS application usage is - VPNs The ability of the service provider to not participate in customer routing is accomplished through.. ? - Overlay VPNs An MPLS label is placed onto a fram at the ____ LSR - Ingress Two MPLS default modes - UD and LLR

Protocol being reliable? and Heavyweight? - Reliable= ACK's for reception of segmentsConnection Oriented. TCP is heavyweight because it is reliable. Why is UDP lightweight? Unreliable? - UDP is an unreliable/Lightweight protocol because no ACK's. (Not Connection Oriented) Define Routing. At what layer on the TCP/IP and OSI stack does it take place? - Routing: Inter-routing between two networks. When routers forward packets closer to their destination hosts. Takes place on the PHYSICAL ...

Using ASCII digital encoding, how many bits are required to encode a single letter, number, or punctuation mark? - 7 Which of the following is not an example of vertical communication between adjacent layers of the 5-layer network model? - the TCP 3 way handshake Which of the following best describes the relationship between EUI-48 (MAC) addresses and IPv4 addresses? - MAC addresses operate at layer 2 (data link) while IP addresses operate at layer 3 (network / internet) This problem, com...

8.1.1 What do we mean when we say Layer 2 protocols are the delivery vehicles for IP packets? - Layer 2 protocols like Ethernet and Wi-Fi provide fast packet transmission across a single network 8.1.2 Provide examples of TCP/IP protocols operating at Layer 3; at layer 4; and at layer 5/7. - •L3: -IP: provides best effort packet delivery across an internetwork -CMP: used to exchange messages between hosts -ARP: used to associate MAC addresses and IP addresses •L4: -TCP: provides reli...

How much connectivity does LANS provide? - 100 Mbps or 1Gbps How much connectivity does Home WAN provide? - 1Mbps to 50 Mbps Which WAN is shared my multiple users? - Home WAN Which WAN is faster? - Corporate WAN Why is the cost of LANs less than WANs? - 1) Distance is a factor in the cost of transmission increases 2) Most LANs consist of Ethernet and Ethernet is very inexpensive 3) Layer 2 technologies within WANs (until recently) are most costly than Ethernet 4) WAN carriers charge mont...

Explain what is meant by "cloud computing?" Distinguish between cloud-based infrastructure as a service (IaaS) and software as a service (SaaS) and provide examples of each. - Cloud computing- a service in which computer service in the form of hardware, application, or other resources is provided to a customer for a fee. Frees the customer from having to provide the resources to its employees or customers Software as a Service: A service in which an application service provider supplies ...

IAAS requires the user to maintain the - Application routers and switches are devices - provide the network when two hosts are connected via a switch their link is a - physical link when using a cloud service __________ is a concern - all of the above which command will give you the IP address of a web server if you only know the name - NSLOOKUP an Ethernet link light when on indicates a - Good layer 1 connection what command is useful to check network connectivity - Ping ping shows - la...

What should you do after you have ended a call from a reporter asking you to confirm potentially classified info found on the web? - Alert your security point of contact. Which of the following actions is appropriate after finding classified Government information on the internet? - Note any identifying information and the website's URL. Which of these is true of unclassified data? - Its classification level may rise when aggregated. What type of information includes personal, payroll, me...

after receiving a prescribed medication, the nurse notes on assessment: HR-58, BP-142/96, RR- 28 with wheezing and scratching at small red splotches on the arms and legs, swollen eyelids, lips and mouth. the nurse should prioritize the following for treatment: - -RR-28 and wheezing -small red splotches on arms and legs -swollen lips, eyelids and mouth a client taking a salicylate should avoid the following foods - -paprika -tea -prunes a nurse is providing care to a client on NSAID's. ...

The nurse notes that a patient is positive for the hepatitis B surface antigen. Which questions should the nurse include in the patient's assessment to help determine the source of the infection? Select all that apply. 1. "Have you been anywhere where the water may have been contaminated?" 2. "Have you eaten any food in areas where the workers may not have had access to hand washing?" 3. "Have you had unprotected sex with anyone who has hepatitis B?" 4. "Have you eaten any raw she...

1. A patient is admitted to the same day surgery unit for liver biopsy. Which of the following laboratory tests assesses coagulation? Select all that apply. 1. Partial thromboplastin time. 2. Prothrombin time. 3. Platelet count. 4. Hemoglobin 5. Complete Blood Count 6. White Blood Cell Count - Answers and Rationale 1. Answer: 1, 2, and 3 Prothrombin time, partial thromboplastin time, and platelet count are all included in coagulation studies. The hemoglobin level, though important info...

The nurse is preparing a teaching plan for a client who is undergoing cataract extraction with intraocular implant. Which home care measures will the nurse include in the plan? Select all that apply. 1. To avoid activities that require bending over 2. To contact the surgeon if eye scratchiness occurs 3. To place an eye shield on the surgical eye at bedtime 4. That episodes of sudden severe pain in the eye is expected 5. To contact the surgeon if a decrease in visual acuity occurs 6. To ...

1.The nurse is monitoring a client who is receiving oxytocin (Pitocin) to induce labor. The nurse should be prepared for which maternal adverse reactions? Select all that apply: 1. Hypertension 2. Jaundice 3. Dehydration 4. Fluid overload 5. Uterine tetany 6. Bradycardia - 1, 4, 5 2. A client who is 29 weeks pregnant comes to the labor and delivery unit. She states that she's having contractions every 8 minutes. The client is also 3 cm dilated. Which medications can the nurse expect ...

A brownout has occurred within a building. A technician is repairing a workstation which has a power light, but is not displaying anything on the screen and is not making any sounds during boot up. Which of the following should be used to further troubleshoot the workstation? - POST card Ideally, rails should be independent and not draw _______________ from each other. - power To handle differing voltages in multiple countries, most power supplies have _______________ options. - dual-volt...

Which of the following ports is used for POP3 traffic by default? - 110 Which of the following connectors are typically used to terminate an RG-6 cable? (Select TWO). - F BNC Both the RG-59 and RG-6 standards are rated by impedance, which is measured in _______________. - ohms You connect a workstation to the wall outlet with a _______________. - patch cable How many bits are in a MAC address? - 48 bits The most common type of patch panel today uses a special type of connecter called a(n...

What tool can you use in Windows to configure and manage hard drives and RAID levels? - Disk Management In computer hardware, __________ connects a computer to SCSI, Fibre Channel and eSATA devices. - HBA How many PATA hard drives can you have on a system with two PATA hard drive controllers? - 4 Motherboards provide support for the SATA hard drive controllers via the system BIOS, but they require configuration in _______________ for the specific hard drives attached. - CMOS Ann, a cust...

What tool can you use in Windows to configure and manage hard drives and RAID levels? - Disk Management In computer hardware, __________ connects a computer to SCSI, Fibre Channel and eSATA devices. - HBA How many PATA hard drives can you have on a system with two PATA hard drive controllers? - 4 Motherboards provide support for the SATA hard drive controllers via the system BIOS, but they require configuration in _______________ for the specific hard drives attached. - CMOS Ann, a cust...

Alice recently purchased a new cell phone. After her vacation, Alice wanted to transfer her holiday photos to her computer, where she could do some touchup work before sending the pictures to her children. When Alice attached her phone to her computer, she saw that Windows detected her phone and tried to load the applicable software to give her access to her phone. Unfortunately, after trying for several minutes, Windows displayed a message indicating that it was unsuccessful. When Alice ex...